The second half is under way at the Kassam after that 30-minute delay for a medical emergency in the crowd before the break.

Pompey are looking for back-to-back wins to pull away from the danger zone.

Oxford have three draws in their last four and have scored just once in those matches.

Which way is this going?

A chance for Zian Flemming as he is unmarked from a free-kick, but team-mate Bashir Humphreys jumps in front of him, Flemming is distracted and the ball rather hits him and goes behind.

Frustration is growing for the Clarets.

Another sub from the home side and a final one for the away team.

Sivert Mannsverk is off and young striker Cian Ashford is on.

Anis Mehmeti makes way for West Ham loan midfielder George Earthy for Bristol City.

Now Andrew Hughes is booked as he is a bit late on Josh Cullen.

It's getting a bit feisty as we head into the closing stages.

A stray boot from Zian Flemming catches a Preston player and that is enough to earn the Dutchman a booking.

Time is not the home side's friend now.

Sivert Mannsverk's header is too close to Max O'Leary in the Robins net and he makes a comfortable save.

Gary Owers
Former Sunderland & Bristol City midfielder on BBC Radio Bristol

What a chance.

Sam Bell was stretching a bit but what a ball from Roberts.

It was a little bit behind him.

Now a second switch for Preston as Emil Riis replaces Milutin Osmajic up top.

Very much like-for-like, that one.

BIG chance for 2-0!

Sam Bell heads wide from close range from Haydon Roberts' ball into the middle.

A great chance to wrap this one up with just under 15 minutes to go.

A first alteration of the game for Preston.

Ryan Ledson has been as committed as ever in midfield, but he is withdrawn and Sam Greenwood comes on.

It's worth remembering that Burnley MUST win to overtake Sheffield United and go second, albeit temporarily.

Jaidon Anthony tries to do something about it as he gets into the box in a promising position. He cuts onto his right and goes for the top corner.

But his curler is a couple of yards over.

Changes aplenty.

The home side take off former Aston Villa pair Anwar El Ghazi and Callum Robinson and bring on Yousef Salech and Chris Willock.

Bristol City sub off Sinclair Armstrong and bring on experienced goal-getter Nahki Wells.

Cardiff sub Aaron Ramsey leathers a shot over the bar.

The veteran midfielder has had his season ruined by injury so far and is looking for a first goal since September 2023.

Clarets boss Scott Parker turns to his bench for the first time with just under 20 minutes to play.

Josh Brownhill and on-loan Sporting forward Marcus Edwards are summoned with Lyle Foster and Hannibal Mejbri making way.

Foster really will regret those two misses either side of the break, whether Burnley win this game or not.

Image source, Rex Features

And there is the half-time whistle.

It's a delayed break as the players were off the pitch for about half-an-hour while a medical emergency in the crowd was seen to.

There has not been too much to report on the pitch so far.

Steve Eyre
Former Manchester City coach on BBC Radio Lancashire

It could be time for a roll of the dice for someone to change the game.

There's no subs yet but the players are now trying to show a little bit more adventure.

Sinclair Armstrong sees a shot deflect wide for the away side as they look to drive home their advantage.

Pompey's Andre Dozzell is the first man into the referee's notebook as the clock ticks down to half-time.

Dafydd Pritchard
BBC Sport Wales at Cardiff City Stadium

The away end is bouncing after that Jason Knight goal, as you might expect.

The opening 15 minutes of the second half have provided more entertainment than the entire first half, with chances for both teams.

Burnley are attacking the end housing over 5,000 of their supporters.

The Clarets fans will try to suck the ball in if they can to help their promotion push.

But hearts are in mouths as Brad Potts goes close at the other end with a shot only just past the far post.