Ronald Koeman has opened the door for Wayne Rooney to return to Everton.
Rooney's agent was in China this month, assessing the player's options, but the 31-year-old last week issued a statement insisting he was staying at Manchester United.
"I believe that Wayne Rooney is still playing at a high level," said Koeman on Sky Sports. "I think he made a good choice to stay at Manchester United and in the Premier League because he has still two or three years in front of him to play on a high level.
"What will happen at the end of the season? I don't know but in my opinion he is one of the players who can make Everton more stronger.
"It's all about what the player likes, what Manchester United needs to do, and we are not involved in that project.
Rooney made his debut with Everton at 16 on the opening day of the 2002-03 campaign.