Expect Valencia to line up in their usual 4-4-2, a shape that gives them solidity in the middle and two strikers ready to pounce on any second ball. Corberan likes his teams compact, hard to break down, but with enough width to hurt you on the counter. The full-backs will push on, the wide midfielders will tuck in, and the front two will feed off scraps. It's not pretty, but it's effective — especially at home, where the crowd turns every 50-50 into a 60-40. Dieng, if he starts, gives them a shield in front of the back four, breaking up play and letting the creative types do their thing.

Celta will likely stick to their 4-3-3, a shape that's all about possession and pressing high. They want to dominate the ball, work it through the thirds, and get their wide forwards in behind. But that leaves gaps. Against a team like Valencia, who are happy to sit in a low block and hit you on the break, that's a dangerous game. The double pivot of Celta's midfield will have to be spot on, or they'll get carved open. The battle in the middle of the park is where this will be won — Valencia's two central midfielders against Celta's three. If Valencia can win that dogfight, they'll control the tempo and starve Celta of the ball. If Celta can pass through the lines, they'll cause problems. But at Mestalla, with that noise, we fancy Valencia to edge it.