Find out who is missing through injury and who is in a race against time to prove their fitness in the Premier League this weekend.

Arsenal can trim the gap to Premier League leaders Liverpool down to just four points on Saturday as they welcome West Ham to the Emirates Stadium. Racked by injuries up front, Mikel Arteta's side had to dig deep last time out, before two late goals from auxiliary striker Mikel Merino secured them victory at Leicester.

Arsenal's Premier League title challenge was dented by an unexpected 1-0 home loss to West Ham on Saturday that featured a fifth red card of the season for Mikel Arteta's team. Second-place Arsenal squandered a chance to trim the gap to Liverpool to five points as Jarrod Bowen's first-half header secured a win for West Ham,