Everton boss Koeman acknowledged new signing Wayne Rooney's adaptability but signaled his intention to use the 31-year-old in an attacking capacity.

"Everyone knows the qualities of Wayne. We're trying to get more productivity," the Dutchman said. "He can be 10 behind the striker, the 9, the 7.

"When we spoke it was about ambition, he was desperate to come back. He showed me he likes pressure, he's used to doing that. Some players need it to get the best out of themselves.

"You mention his age, 31, 32 in October, still young for football. The qualities and ambition showed me enough to come back to Everton."