Crysencio Summerville swings in a free-kick from the right and Leeds want a penalty for handball.

The ref isn't interested and there's no VAR in the Championship, so no dice.

Dan James then sees a shot blocked as the away side keep looking for that opening goal.

Preston midfielder Ali McCann is the second home player in the book.

He goes in pretty wildly on Georginio Rutter and is rightly booked.

Liam Millar looks most likely for Preston down their left.

He picks up the ball in a decent shooting position but leathers it 20 yards over.

We are under way at The Den!

Who will come out on top in this London derby?

Leeds are starting to get on top of this now.

Djed Spence gets in behind down their left and looks to tee up Joel Piroe in the middle but the Dutchman can't get his shot away cleanly.

Preston scramble clear but the pressure is still on.

Mansfield have taken the lead against Grimsby thanks to Davis Keillor-Dunn in the 12:30 GMT League Two kick-off.

George Maris fed Keillor-Dunn who cut inside before seeing his effort deflected into the back of the net for his 13th goal of the season.

Jon Newsome
Ex-Leeds defender on BBC Radio Leeds

Image source, Getty Images

Preston have not created very much but they have disrupted Leeds' rhythm. Preston will be the happier of the sides so far.

Millwall have made four changes from the side that earned a point away at Stoke City on Saturday, with Duncan Watmore, Tom Bradshaw, Aidomo Emakhu, and a man who knows how to make a big impact in a London derby, Joe Bryan.

Osman Kakay comes in to the starting lineup for QPR, whilst Ziyad Larkeche and Paul Smyth also start for the away team.

Millwall XI: Sarkic, Cooper, Harding, Leonard, Bryan, Saville, Emakhu, Norton-Cuffy, Honeyman, Watmore, Bradshaw.

Subs: Bialkowski, Esse, Flemming, Hutchinson, Longman, McNamara, Mitchell, Nisbet, Wallace.

QPR XI: Begovic, Kakay, Dunne, Clarke-Salter, Larkeche, Paal, Field, Dozzell, Smyth, Chair, Dykes.

Subs: Archer, Drewe, Cannon, Dixon-Bonner, Adomah, Richards, Willock, Kelman, Armstrong.

Brad Potts chops down Crysencio Summerville as the Dutchman looks to arrow in at goal 30 yards out and he's booked.

Leeds forward Crysencio Summerville is back up after some treatment from the medical team.

Good to see as he's been in superb form this season.

Liam Millar drifts in off the Preston left and swings a vicious cross-shot to the back stick that nobody gambles on.

Steve, Darlington: I'm going to call it now. 1-0 to Preston, Leeds are looking their usual lethargic self against a struggling side.

Some concern here as Crysencio Summerville lands very awkwardly after a strong, but totally fair, challenge from Preston's Ali McCann.

Jon Newsome
Ex-Leeds defender on BBC Radio Leeds

Leeds just aren't in their stride. It's not down to a lack of effort or endeavour, but it's just not clicking for them at the moment.

The home side are having the better of it.

They have the first real shot of the day as Ben Whiteman's shot is charged down by Glen Kamara.

Leeds are yet to get in-form winger Crysencio Summerville into the game at all.

Image source, Getty Images

Both Millwall and QPR will be desperate to turn around their poor form and land a knockout blow against the other on Boxing Day.

Since a dream start to his reign with a 4-0 win over Sheffield Wednesday, Millwall boss Joe Edwards has not seen his side win in the seven games since.

Meanwhile, after winning three games on the spin in a resurgence under Marti Cifuentes earlier this month, QPR have returned to all too familiar territory, gaining just one point in their past three games.

It is sure to be a London derby that packs a punch, but which manager will get a much-needed late Christmas present?

Steve Eyre
Former Manchester City coach on BBC Radio Lancashire

Preston have had a bit more possession and territory than Leeds United, so it's been quite a good start.

Preston winger Liam Millar is looking lively.

The former Liverpool man is in the starting XI after scoring from the bench in Friday's loss at Swansea.

The schemer wins a free-kick out wide but Leeds keeper Illan Meslier is out to punch it clear.

Nice, high-tempo start from both teams.

No shots on goal in the opening minutes but a good feel about it.

Preston showing some nice touches in possession as they look to put on a show in front of the home faithful.

Terry: I think Leeds will chase down Ipswich and will beat Preston 2-1 today.

Dean Plumley: Being a Leeds fan for 30+ years, we all know there is the easy way, the hard way and the Leeds way. Nothing is guaranteed in football, Leeds need to be professional and get at Preston early, massive game today, massive.

There's a bumper crowd in at Deepdale and the atmosphere is absolutely crackling.

Preston boss Ryan Lowe is under a bit of pressure after their poor run of form, this could be a huge game in his tenure as Lilywhites gaffer.