Pogba key to Manchester United landing Atletico Madrid striker Griezmann

Manchester United believe that Paul Pogba may be the key to signing Antoine Griezmann from Atletico Madrid next summer, according to The Sun. 

Arsenal and Chelsea are also monitoring the France international who has a £89.3 million release clause. 

However, Pogba and Griezmann are close,and thier friendship could sway the forward's decision should bids be tabled.