Former Arsenal chief David Dein says Alexis Sanchez deserves comparisons with Thierry Henry.

The Chile international's hat-trick in Saturday's 5-1 win over West Ham was his 11th Premier League goal.

“I think you've got to say he's world class," Dein told the London Evening Standard.

“He's fantastic. He's a delight."

And when asked if Sanchez was like Henry, Dein added: "Yeah and certainly he is an extraordinary talent.

“He's got a great attitude to the game and immense skill.

"So he's an exciting player."