Hello and welcome to LIVE updates of the FA Cup fourth round clash between League One Peterborough United and Premier League Leicester City at the ABAX Stadium. Can Posh upset the 2016 champions, or will the Foxes edge beyond another potential banana skin? Kick off 12.30 GMT.

Marriott chases down a slow back pass and forces an error out of Ben Hamer, who gets lucky when his attempted clearance rebounds to safety off the striker's block.

Iheanacho takes a touch before curving a low shot from 20 yards out that is too close to Jon Bond in the Posh goal.

Iheanacho and Diabate combine well before the latter flashes a long-range drive way over the crossbar.

Looking at his record, it's fair to suggest Kelechi Iheanacho loves the FA Cup. He's been involved in eight goals in his last eight outings in the competition (seven goals and one assist). IN the last round he grabbed a brace against Fleetwood.

Grant receiving treatment after he was caught by Barnes. He's grimacing away but should be OK to continue.

DID YOU KNOW? Leicester have gone through in six of their last seven fourth-round meetings with sides in a lower division. The last time they failed to progress was against West Brom back in 2002.

Posh are eighth in League One while the Foxes are currently seventh in the top-flight. There's a rather large gap, but this is a game many felt could see the hosts spring a surprise.

Almost a goal inside 25 seconds as Barnes pokes just wide after a lightning Leicester attack from the kick off.

KICK OFF! Here we go! The visitors get us underway.

STAT: Peterborough have been beaten just once in their last 14 matches in the FA Cup. Posh have won eight and drawn five. Against top-flight opposition? They've drawn two and lost once in that time (v Chelsea).

A sub plot leading into this tie was that Vardy could come up against his V9 Academy graduate, Alex Penny. However, both players on the bench this afternoon.

Both of these sides made the headlines for very different reasons in round three. Posh did it with the more traditional FA Cup shock as they scored three late goals to stun Championship outfit, Aston Villa 3-1 at Villa Park. Meanwhile, Leicester became the first side to score via VAR in their replay with Fleetwood.

Puel recognises the threat of 24-goal Marriott, who is shaken off a knock to start.

Claude Puel: "They play good football and they have a striker in form in Jack Marriott and a very talented attacking player in Marcus Maddison."

Posh boss, Grant McCann: "The plan is to play behind them, create chances and score goals. If you sit back against Premier League teams they will pick you off and beat you easily."

In contrast, Posh have made just one change from the impressive 3-0 success over Oldham last week. Leo Da Silva Lopes replaces Junior Morais.

It's an interesting line-up for the Premier League side. Riyad Mahrez and Jamie Vardy are on the bench as Claude Puel rings the changes from the 2-0 top-flight success over Watford. Harry Maguire is the only survivor from that starting XI. Fousseni Diabate makes his Foxes bow while Harvey Barnes and Demarai Gray also feature from the off.

CONFIRMED TEAMS - PETERBOROUGH: Bond, Shephard, Hughes, Tafazolli, Forrester, Lloyd, Maddison, Marriott, Lopes, Taylor, Grant... Subs: O'Malley, Baldwin, Morais, Penny, Kanu, Doughty, Borg. /// LEICESTER CITY: Hamer, Simpson, Maguire, Benalouane, Fuchs, Silva, Iborra, Diabate, Gray, Barnes, Iheanacho... Subs: Jakupovic, Chilwell, Huth, Albrighton, Ndidi, Mahrez, Vardy.