Sanchez fires Arsenal, City cruise in FA Cup

Arsenal remain on course for a third consecutive FA Cup success after Alexis Sanchez inspired Arsene Wenger's side to a 2-1 fourth-round win over second-tier Burnley on Saturday. Manchester City and Tottenham Hotspur also progressed, but West Bromwich Albion were taken to a replay by third-tier Peterborough United and Bournemouth had to come from behind to beat 2008 FA Cup winners Portsmouth.