3) Alexis Sanchez: Barcelona -> Arsenal (£30 million)
It’s surprising Barcelona ever allowed Sanchez to go in the summer despite the impending arrival of Luis Suarez with the Chilean forward showing just what a talent he is since his move to Arsenal.
But the Gunners are certainly pleased with Sanchez becoming the main man in North London and the reason Arsene Wenger’s side are anywhere near contention for the top four.