Arsenal dealt William Saliba injury blow as Mikel Arteta star set to miss several matchesArsenal defender William Saliba faces 3-4 weeks out with a sprained left ankle, French reports confirm. The 24-year-old was forced off early in Arsenal’s loss to Liverpool and subsequently withdrew from international duty. Saliba could miss key Premier League and Champions League matches. Summer signing Cristhian Mosquera replaced Saliba against Liverpool, while Piero Hincapie joined on loan as defensive cover.