BBC Radio 5 Live

There is plenty of live action for you to get across on BBC Radio 5 live today.

First up is commentary of League Two Wycombe against Premier League Aston Villa at 12:45 GMT, before Manchester United v Sheffield United at 17:30 GMT.

You will also be updated of all the action as it happens for the 15:00 GMT kick offs, as well as Doncaster v Stoke being live on BBC Radio 5 live Sports Extra.

Image source, Getty Images

So what are the chances for Wycombe in the Martin O'Neill derby?

The League Two side have only beaten a higher-ranked side in the third round of the FA Cup once, defeating Grimsby in a replay in 2001. 

That was the season of course they made the semi-final, defeating Leicester City along the way.

The current Wanderers side have won three of their last four and are up in sixth in the League Two table.

Clive Allen
BBC Radio 5 live at Adams Park

"It was a great pleasure to play in two FA Cup finals and my father won the cup, it is magical. The hairs on the back of my neck are standing up. We have all the ingredients for a potential cup upset.

"This is a must win for Remi Garde and Aston Villa but it is a tricky tie for them."

Football Focus

What a day we have in store - 52 teams, 26 fixtures, heartache, giant-killings and plenty of magic. 

Dan Walker kicks off the day in Eastleigh as the non league side prepares to host Bolton Wanderers. Anyone sensing an Cupset? 

Joining Dan in Hampshire are Graham Le Saux, Dion Dublin and Michael Appleton. 

Football Focus is underway and, word is, that there will be a pitch inspection live on the air. 

It looks like it will take a bit of turn.

Click on the play icon at the top of this page to have a watch.

Image source, PA

After a couple of months out, those gnarled old pros in the punditry box tell us it can take a few games to get "match fit".

What about after more than a decade out?

On the Wycombe bench today is 46-year-old goalkeeping coach Barry Richardson, whose last serious game was for Doncaster in 2005.

He is covering for stopper Alex Lynch after Matt Ingram's red card against Morecambe on Saturday.

"We've got no one else we can put in there," said boss Gareth Ainsworth. "That's Wycombe, you get your chances."  

Let's hope he's had his cod liver oil for breakfast. About a pint should do it.

Wycombe make two changes for the big cup tie. Alex Lynch starts in goal and Aaron Amadi-Holloway starts up front.

Aston Villa manager Remi Garde names a strong side but still makes six changes from defeat at Sunderland. In come Mark Bunn in goal, Scott Sinclair and Ashley Westwood.

Wycombe XI: Wycombe: Lynch, McCarthy, Jacobson, Stewart, Pierre, Harriman, O'Nien, Bloomfield, Wood, Thompson, Amadi-Holloway

Aston Villa XI: Bunn, Richards, Okore, Clark, Richardson, Bacuna, Gana, Westwood, Gil, Sinclair, Gestede

Image source, BBC Sport

Usually going out of the Cup is a chance to concentrate on the league.

Aston Villa this season have gone for the reverse tactic - getting out of the league so they can focus on the cup.

Now under the guidance of Remi Garde, Villa have been cut adrift at the bottom of the top-flight with only a revolver and solitary bullet for company. 

Nothing to lose - apart from further humiliation in a car-crash of a season. 

Image source, Getty Images

In the words of our own chief writer Phil McNulty, Tim Sherwood's Aston Villa "produced a performance of style, composure and grit" to beat Liverpool at Wembley.

Christian Benteke had scored six goals in four games.

Villa were one game from an eighth FA Cup and sitting a comfy six points above the Premier League relegation zone.

All this was less than nine months ago.