What a chance! What a save! Ashley Barnes goes clean through, all on his own with just the goalkeeper to beat, but MK Dons' Lee Nicholls sprawls superbly to claw the ball off Barnes' foot as he attempts to go round and slot home.

Barnes has scored only one league goal so far this season.

It is very foggy in Stevenage, giving a slightly gloomy feel to this game. Swansea are very much in control as they look to add a second and avoid being on the end of an upset.

The Blades looking dangerous in every attack. David McGoldrick picks up the ball near the edge of the box, turns inside and curls a shot wide of the target.

QPR continue to look the more dangerous of the two sides as Ilias Chair drives a low effort at goal that is scooped up by Marek Rodák.

At the other end, Ivan Cavaleiro steers a rising effort well over the bar.

Michael Brown
Former Leeds midfielder on BBC Radio 5 Live

It's a fabulous start from Sheffield United. As the ball goes out, John Lundstram did ever so well. It's not like the Sheffield United of late, they delivered an early cross and a fantastic header by Lys Mousset. Fabulous goal and great start for Sheffield United.

Image source, Reuters

Bradley Dack with that bit of quality for Blackburn. The home side's playmaker with a sumptuous outside-of-the-foot ball onto the chest of Ben Brereton. But Brereton's shot is blocked by a Doncaster defender.

Very little to report from the Vitality so far. A little reminder that this tie is being played at Bournemouth and not Boundary Park, where the pitch was deemed unplayable.

Leicester City come to life for the first time as Marc Albrighton cuts in from the right and picks out Harvey Barnes in the box. The winger takes a touch and looks to slide a low shot into the far corner, but goalkeeper Josef Bursik gets down well.

A chance for Wycombe to double the lead already.

It's a clear foul, as Joshua Earl brings down Uche Ikpeazu.

Blackpool have made a really promising start against their Premier League opponents.

Gary Madine fires just wide of the target following more good build-up play. The hosts are building some momentum.

Image source, Getty

The great and the good are at Ewood Park, in cardboard cut-out form rather than in person of course.

Among the figures in one section of seats is former Blackburn owner Jack Walker, legendary manager and backroom figure Tony Parkes and, er, international pop icon Elvis Presley.

Not much for any of them to get too interested in so far. Doncaster enjoying more of the ball, but not making much headway in the final third.

John Obi Mikel has won the FA Cup three times and he saw his name flashing up in lights again there.

Leicester fail to properly clear a Stoke corner and the former Chelsea midfielder drives a left-footed effort over the bar from just outside the area after catching it sweetly on the bounce.

Good start by the Championship side, who should really be 1-0 up but Macauley Bonne puts a free header from a corner over the bar.

A let off for Fulham.

Blackpool are winless in their last 15 FA Cup games against top-flight sides, since beating Burnley in the third round in January 1976.

The hosts have started on the front foot at Bloomfield Road and are dominating on the ball, but neither side has managed to force an opening just yet.

Half a chance early on for the hosts as Lewis Page sticks a dangerous ball into the Sheffield Wednesday box and Matt Jay can't quite engineer an effort on target.

Good start for Exeter.

There's been an early break in play because Wayne Routledge's clearance hit Scott Cuthbert full on in the face. The Stevenage skipper needed a bit of treatment before being able to continue.