Everton assistant manager Erwin Koeman is full of praise for Manchester City target John Stones.

There has been increased speculation about a reported £50million move but Stones, who played the last 11 minutes of the Toffees' penalty shoot-out defeat to Real Betis in Germany on Saturday and 69 minutes against Dynamo Dresden on Friday, has remained focused.

"He is very positive," Erwin Koeman said post-match.

"Of course we know the rumours. John is very positive in training. He does his job, so that's great.

"It's very simple - he is a member of Everton. Top professionals don't show anything - they do their job.

"They are professional and he is."