There are constant doubts regarding Olivier Giroud's ability to be the main man for the Gunners but Sanchez, who has often operated as more of a wide attacker, has shown with his five goals in all competitions that he is more than capable of performing in a more central role.
“I saw him play up front for Chile at the World Cup, having only ever seen him play out wide for Barcelona, and his work-rate, pace and ability on the ball were so impressive.
“Defenders hate that, I remember playing against Ian Rush and he was an absolute pest – you didn't want the ball when he was around.
“When Wenger signed Sanchez I thought Arsenal's closing down from the front was going to be the best it's ever been, and it's been a mystery to me why it's taken so long for him to be played down the middle. He has looked fantastic there so far and he will only get better as he learns more about the position.
“Over the past few matches I can't think of another striker who has contributed more to the team than him – he's looked like Sergio Aguero of late.