Martin Keown Backs Alexis Sanchez to Trouble Arsenal on Friday Night FA Cup Return

​Former Arsenal defender Martin Keown has claimed Alex Sanchez could be key for Manchester United, as they travel to north London for Friday's night's eagerly anticipated FA Cup fourth round showdown. United head to the Emirates for the tie on the back of seven consecutive victories under interim manager Ole Gunnar Solskjaer, hoping to eliminate the 13-time FA Cup winners in search of their own 13th crown. It's #EmiratesFACup matchday! Who's up for the cup? ‍♂️ pic.twitter.com/stHPxKEYSq —... Via All the latest breaking football news, transfer rumours, analysis, and match reports - 90min http://www.90min.com/