Arsenal hero Martin Keown has branded Chelsea boss Maurizio Sarri "stupid" after their FA Cup defeat to Manchester United.

Sarri left Callum Hudson-Odoi on the bench for the loss.

He caused annoyance at Stamford Bridge by bringing on Davide Zappacosta in place of Cesar Azpilicueta - and the defensive switch when trailing was the final straw for some.

Keown said: "He [Hudson-Odoi] is probably wondering why he isn't coming on.

"I mean they're two goals down and he's put a defender on!

"Is it a political move from the manager because it's a stupid one if it is."