Carlos Gomes lifts a shot over for Bolton from just inside the area - it's a decent chance as Jordi Osei-Tutu plays the ball into his path.

Birmingham defender Ben Davies picks up a knock and needs treatment. He's looks okay to continue, though, and is back on.

Can Wycombe find a way to snatch an unlikely leveller?

Steven Fletcher and Jack Marriott are on for Wrexham to replace Sam Smith and Jay Rodriguez.

Bradford make a triple change as they hunt for an equaliser.

Jamie Walker makes way for Calum Kavanagh and Brandon Khela is replaced by George Lapslie.

Bobby Pointon is introduced for Tommy Leigh.

Keith Hill
Former Bolton and Barnsley boss on BBC Radio Manchester

There's real problems down this left-hand side of the pitch since Alex Murphy went off.

Wrexham are going to create more opportunities.

They have dominated in every aspect and you just have to withstand that pressure.

Wycombe boss Mike Dodds makes two more changes to try and help turn the tide.

Luke Leahy and Jack Grimmer are on for Cameron Humphreys and Jasper Pattenden.

A change for Wrexham as Ryan Barnett takes the place of Ryan Longman

For Bolton, Joel Randall is introduced at the expense of John McAtee, who has barely touched the ball in this second period.

Perhaps the closest Birmingham have come in this second half... a ball across the box by Ethan Laird is deflected away and drops to Alex Cochrane on the edge of the area.

He takes a swipe at it with his left foot and his effort fizzes narrowly wide of the post.

Josh Dacres-Cogley delays a Bolton throw-in and tries to take it about 10 yards further forward than he should - either way it's a caution.

Tranmere's corner is cleared only as far as Lee O'Connor who hits a volley that Ben Amos has to tip round the post.

Ronan Curtis attempts to clear the resulting corner but his effort hits the post of his own goal, eventually Vale manage to clear the ball to safety.

Wycombe are just starting to show a bit more fight in this one. Garath McCleary leads a breakaway but fires a cross over everyone in the box.

And now a change as Birmingham goalscorer Taylor Gardner-Hickman makes way for Emil Hansson.

Darren Carter
Ex-Birmingham midfielder on BBC Radio WM

Wycombe are a threat and they have put the ball into the box on few occasions in this second half.

That second goal is all important for Blues.

Josh Hawkes makes way for Connor Jennings for Tranmere.

Oh, another great chance for Wrexham and it's Eoghan O'Connell at the far post again.

A free-kick finds the home captain but his instinctive effort is wide.

They're getting closer.

Wycombe win a free-kick in a decent area about 35 yards from goal on the right and Cameron Humphreys swings it in.

It's flicked on for Joe Low who gets to the ball first and then collides with Ryan Allsop in the Birmingham goal.

Blues manage to keep it out before the referee blows for a foul... a glimmer of hope perhaps for the Chairboys? They need to keep it at one and perhaps a set-piece may be their best route to goal.

Jordi Osei-Tutu is the first Bolton man to be cautioned as he drags back the impressive Ryan Longman to prevent him getting away again down the right side.

With Wycombe losing and down to 10 men at Birmingham this is a big chance for Wrexham to draw level with the second-placed Chairboys.

It's also Wycombe v Wrexham in a fortnight's time.

The trouble is the Welshmen can't find a goal at the minute.

Kieran Dowell bundles his way to the byeline for Birmingham but is adjudged to have fouled Sonny Bradley on the way through.

Much of this second half is being played in the Wycombe half. So far, the visitors have done well to keep things quiet with 10 men, but they need to try and find a way back into it somehow...

Darren Moore makes his first change of the afternoon as Antwoine Hackford is replaced by Lorent Tolaj for Port Vale.

Bolton are struggling to get out of their half and Wrexham have a habit of just wearing teams down through sheer force of will.

The visitors need a spell of possession to take the sting out of this.