The return fixture will see Gjanni Alioksi reunited with Nicolas Pepe, but a far more intriguing battle will be the one between Raphina and Cedric Soares.
Here's the YEP preview.
Cedric Soares v Raphinha
Leeds United's in-form Brazilian winger will not be up against Arsenal's first choice left-back, Kieran Tierney. The Scottish international will not have recovered from a lower leg muscle strain in time for the visit of the Whites, so Cedric Soares is expected to continue at left-back where he has played for the past four games. If Raphinha can reproduce his performance against Crystal Palace, Soares will be up against it and Leeds will have an in-road. Raphinha's movement is difficult for very good defenders to handle so Soares will need to be on it from the start.
ARSENAL KEY MAN
Saka is an active threat throughout games and one teams struggle to contain. He makes good choices in the final third, producing passes that create chances, he can dribble past defenders, he wins free-kicks, gets shots away and scores goals. He was highly impressive when he came on at Elland Road, only for a bruised knee to take him off again. One to watch.
GRAHAM SMYTH'S VERDICT
Leeds United don't win in London, do they? At some point, that's going to change. Why not this weekend? They're full of confidence, full of goals and attacking flair and Arsenal are not exactly bang in form. Having dominated large spells of their last two games against the Gunners and with Raphinha now firmly embedded in Marcelo Bielsa's side and Patrick Bamford in terrific form, Leeds have a real chance. I can see a win. I'm going 2-1.