United have had a chance to win this but they can't afford to get caught on the counter.
If they go home with a point that would probably be fine, but it should've been all three.
Also, a surprising number of Blackpool fans have left the ground.
League One latest
#bbcefl
Leaders Portsmouth, who have been decimated by injuries this week, are holding on to their 1-0 lead over Carlisle.
Second-placed Derby remain 1-0 up on Shrewsbury and will keep the pressure on Pompey at the top if they secure the win.
Stevenage could be moving up to fifth, they have turned it around at Port Vale and lead 2-1.
Bolton have been down to 10 men and trailing for a long time but are now level against Northampton.
Peterborough and Barnsley could miss a golden chance to close the gap on the automatic places this afternoon - both are behind in their games.
Cheltenham are close to lifting themselves out of the bottom two, if they can hang-on to their narrow 1-0 lead over Cambridge.
HITS THE WOODWORK
Blackpool 1-1 Oxford
The visitors come close to completing the turnaround as sub Billy Bodin throws himself at a header at the far post from Josh Murphy's free-kick but sees the ball thump into the upright and away.
GOAL: Wycombe 4-2 Peterborough
Nicholas Bilokapic 74mins (OG)
Another own goal! This is an extraordinary game.
Super sub Sam Vokes gives Wycombe the lead - kind of.
His header deflects off the Peterborough keeper Nicholas Bilokapic and into the back of the net.
It goes down as an own goal but that was all Vokes who rose above the rest in the box from the close range.
Post update
Reading 2-0 Charlton
When he's on a hat-trick for the first time in his Reading career, we'll let Femi Azeez off this one.
He has thundered (always with the power) another volley in from a tight angle but this one has flown into the stands.
Reading so close to a third win in five games - and another clean sheet.
'Demoralising for Forest Green'
Forest Green 0-3 Mansfield
Gareth Jelleyman
Former Mansfield defender on BBC Radio Nottingham
That's a really intelligent goal from Will Swan.
I think the introduction of Lucas Akins has caused problems for Forest Green.
The home team have played well so this must be demoralising.
HITS THE WOODWORK
Carlisle 0-1 Portsmouth
So close to a second for the leaders.
Conor Shaughnessy has hit the post for the visitors for a second time with a header from Marlon Pack's whipped free-kick while the aforementioned Owen Moxon has dragged the follow-up effort past the post.
GOAL: Forest Green 0-3 Mansfield
Will Swan (78 mins)
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Another goal for Mansfield, who are heading for the win they need - and would have expected - against the league's bottom side. This time Will Swan gets on the scoresheet, applying a first-time finish after being set up by Lucas Akins.
SUBSTITUTION
Carlisle 0-1 Portsmouth
Don't make a habit of these on a Saturday but local boy Owen Moxon has come off the bench for Pompey.
The midfielder joined them from Carlisle last week, having been a talisman in the Cumbrians' promotion campaign last season.
GOAL: Reading 2-0 Charlton
Femi Azeez (76 mins)
Two in 10 minutes and the Royals are in dreamland.
Another long throw, flick-on and larruped home from close range on the volley by Femi Azeez.
This isn't a copy & paste but it might as well be.
GOAL: MK Dons 1-1 Accrington
Jack Payne (71 mins)
The Dons are level. Jack Payne with a brilliant free-kick and it's all square between two of the play-off chasing teams.
DISALLOWED GOAL
Reading 1-0 Charlton
Former Royal Tennai Watson whips in an enticing ball from out wide which is poked home by Addicks sub Daniel Kanu, however the flag is up for offside.
'Forest need a win'
Forest Green 0-2 Mansfield
Billy Hunt
BBC Radio Gloucestershire
Forest Green desperately need to get a goal back now.
They need a win...
...and Mansfield keep getting to the ball first.
GOAL: Forest Green 0-2 Mansfield
Tom Nichols (69 mins)
Yep - from bad to worse for poor old Forest Green as Tom Nichols doubles the visitors' lead with his first Mansfield goal.
CLOSE!
Blackpool 1-1 Oxford
Oxford keeper Jamie Cumming is equal to another Tangerines effort, this time denying Albie Morgan.
He's certainly been the busier of the two keepers this afternoon.
League Two latest
#bbcefl
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Grimsby have one back against leaders Stockport who remain comfortably 3-1 in front.
Second-placed Mansfield and third-placed Crewe are leading their matches 1-0.
AFC Wimbledon are getting the better of their fellow promotion chasers Barrow and are ahead 2-0.
Wrexham, who are just a point outside the top three, are locked in a goalless draw with strugglers Bradford.
Accrington are 1-0 up on MK Dons.
Both Morecambe and Newport County are keeping their playoff hopes alive and are winning their matches.
Post update
Forest Green 0-1 Mansfield
Rex FeaturesCopyright: Rex Features
It's all going wrong for Forest Green. Bottom of the league, losing again, and now keeper Luke Daniels has been stretchered off after being hurt in a collision with Mansfield's Will Swan. Jamie Searle is on in his place.
GOAL: Reading 1-0 Charlton
Femi Azeez (66 mins)
Massive goal at the foot of League One.
The Addicks fail to deal with a long throw into the box and the ball falls to Femi Azeez who has nearly lashed the panels of the football with a ferocious volley into the net for his sixth goal of the season.
Could this be five unbeaten for the upwardly-mobile Royals? Could this be 13 without a win for Nathan Jones' new side?
'Pompey have settled'
Carlisle 0-1 Portsmouth
Lee Bradbury
Former Portsmouth forward on BBC Radio Solent
The game is going to open up now.
Carlisle need to come out and try to get an equaliser.
Portmouth have settled and are using the ball well.
GOAL: Carlisle 0-1 Portsmouth
Paddy Lane (62 mins)
Cometh the hour...
Moments after second-placed Derby took the lead, the table-toppers have got themselves infront through Paddy Lane who fires in a low shot after good work from sub Abu Kamara.
Live Reporting
Alex Hoad, David McIntyre, Luke De Costa and Dan Wareing
All times stated are UK
'Oxford should have 3 points'
Blackpool 1-1 Oxford
Nathan Cooper
BBC Radio Oxford commentator
United have had a chance to win this but they can't afford to get caught on the counter.
If they go home with a point that would probably be fine, but it should've been all three.
Also, a surprising number of Blackpool fans have left the ground.
League One latest
#bbcefl
HITS THE WOODWORK
Blackpool 1-1 Oxford
The visitors come close to completing the turnaround as sub Billy Bodin throws himself at a header at the far post from Josh Murphy's free-kick but sees the ball thump into the upright and away.
GOAL: Wycombe 4-2 Peterborough
Nicholas Bilokapic 74mins (OG)
Another own goal! This is an extraordinary game.
Super sub Sam Vokes gives Wycombe the lead - kind of.
His header deflects off the Peterborough keeper Nicholas Bilokapic and into the back of the net.
It goes down as an own goal but that was all Vokes who rose above the rest in the box from the close range.
Post update
Reading 2-0 Charlton
When he's on a hat-trick for the first time in his Reading career, we'll let Femi Azeez off this one.
He has thundered (always with the power) another volley in from a tight angle but this one has flown into the stands.
Reading so close to a third win in five games - and another clean sheet.
'Demoralising for Forest Green'
Forest Green 0-3 Mansfield
Gareth Jelleyman
Former Mansfield defender on BBC Radio Nottingham
That's a really intelligent goal from Will Swan.
I think the introduction of Lucas Akins has caused problems for Forest Green.
The home team have played well so this must be demoralising.
HITS THE WOODWORK
Carlisle 0-1 Portsmouth
So close to a second for the leaders.
Conor Shaughnessy has hit the post for the visitors for a second time with a header from Marlon Pack's whipped free-kick while the aforementioned Owen Moxon has dragged the follow-up effort past the post.
GOAL: Forest Green 0-3 Mansfield
Will Swan (78 mins)
Another goal for Mansfield, who are heading for the win they need - and would have expected - against the league's bottom side. This time Will Swan gets on the scoresheet, applying a first-time finish after being set up by Lucas Akins.
SUBSTITUTION
Carlisle 0-1 Portsmouth
Don't make a habit of these on a Saturday but local boy Owen Moxon has come off the bench for Pompey.
The midfielder joined them from Carlisle last week, having been a talisman in the Cumbrians' promotion campaign last season.
GOAL: Reading 2-0 Charlton
Femi Azeez (76 mins)
Two in 10 minutes and the Royals are in dreamland.
Another long throw, flick-on and larruped home from close range on the volley by Femi Azeez.
This isn't a copy & paste but it might as well be.
GOAL: MK Dons 1-1 Accrington
Jack Payne (71 mins)
The Dons are level. Jack Payne with a brilliant free-kick and it's all square between two of the play-off chasing teams.
DISALLOWED GOAL
Reading 1-0 Charlton
Former Royal Tennai Watson whips in an enticing ball from out wide which is poked home by Addicks sub Daniel Kanu, however the flag is up for offside.
'Forest need a win'
Forest Green 0-2 Mansfield
Billy Hunt
BBC Radio Gloucestershire
Forest Green desperately need to get a goal back now.
They need a win...
...and Mansfield keep getting to the ball first.
GOAL: Forest Green 0-2 Mansfield
Tom Nichols (69 mins)
Yep - from bad to worse for poor old Forest Green as Tom Nichols doubles the visitors' lead with his first Mansfield goal.
CLOSE!
Blackpool 1-1 Oxford
Oxford keeper Jamie Cumming is equal to another Tangerines effort, this time denying Albie Morgan.
He's certainly been the busier of the two keepers this afternoon.
League Two latest
#bbcefl
Post update
Forest Green 0-1 Mansfield
It's all going wrong for Forest Green. Bottom of the league, losing again, and now keeper Luke Daniels has been stretchered off after being hurt in a collision with Mansfield's Will Swan. Jamie Searle is on in his place.
GOAL: Reading 1-0 Charlton
Femi Azeez (66 mins)
Massive goal at the foot of League One.
The Addicks fail to deal with a long throw into the box and the ball falls to Femi Azeez who has nearly lashed the panels of the football with a ferocious volley into the net for his sixth goal of the season.
Could this be five unbeaten for the upwardly-mobile Royals? Could this be 13 without a win for Nathan Jones' new side?
'Pompey have settled'
Carlisle 0-1 Portsmouth
Lee Bradbury
Former Portsmouth forward on BBC Radio Solent
The game is going to open up now.
Carlisle need to come out and try to get an equaliser.
Portmouth have settled and are using the ball well.
GOAL: Carlisle 0-1 Portsmouth
Paddy Lane (62 mins)
Cometh the hour...
Moments after second-placed Derby took the lead, the table-toppers have got themselves infront through Paddy Lane who fires in a low shot after good work from sub Abu Kamara.