Former Arsenal midfielder Jack Wilshere rates Alexis Sanchez as a better player than Robin van Persie.
Both strikers eventually left Arsenal for Manchester United.
Wilshere told talkSPORT: "This is tough, because both players were absolutely incredible.
"But I will say that Alexis was better, mainly because I played with him longer.
"As good as Robin was, he did not have the speed like Alexis. He was that player who did not give us much defensively."