Manchester United boss Jose Mourinho won't be surprised if Henrikh Mkhitaryan stars with Arsenal.

Mourinho admits the Armenian underperformed while with him.

"I believe Mkhi is going to be even better than he was with us," said Mourinho. "With one-and-a-half years in England, adapted, Arsenal play the way they think. I think it's a good move for everybody, that's why I'm also happy for Mkhi.

"Could he perform better with us? Could I take more from his talent? Maybe. Could he give a little more also to adapt to us? Maybe. But I don't have regrets.

"He's in our history, so good feeling for everybody and a very specific transfer between rivals in a big country which I have to say must happen more times."