Arsene Wenger concedes it will be strange to face-off against Alexis Sanchez on Sunday when the Chile international steps out for Manchester United at home to Arsenal.
Alexis made the switch from north London to Old Trafford in January, in a deal that saw Henrikh Mkhitaryan move the other way, and is set to tackle his former team-mates for the first time this weekend.
Wenger brought Sanchez to Emirates Stadium from Barcelona in 2014 but Arsenal were unable to agree to a new contract with the 29-year-old, forcing the Gunners into a mid-season sale amid anger from fans.
Sanchez was amongst those who paid tribute to Wenger following the announcement he will leave Arsenal this summer, bringing an end to a historic 22-year spell with the club, and the French boss feel…