Arsenal go into their FA Cup match against Manchester United wondering what might have been after the last round of league fixtures. Mikel Arteta's team failed to beat Brighton on Saturday, with Joao Pedro equalising from the penalty spot after a contentious award. It will have felt like even more of a missed opportunity on Sunday afternoon as league leaders Liverpool were held by United at Anfield. Kai Havertz missed the Brighton game through illness, though he shouldn't be sidelined for too