The FA Cup semi-finals are taking place this weekend, and Arsenal’s old rivals Manchester United will be facing Championship side Coventry City. Man United will be aiming to reach their second FA Cup final in a row, where they could face Manchester City or Chelsea, and are the favourites against Coventry despite their poor form in the Premier League. Coventry, who lost the Championship playoff final last season, will be heading back to Wembley hoping to cause an upset, and they will have one former Arsenal youngster within their squad in Ben Sheaf. The 26-year-old left Arsenal permanently in t…