Radamel Falcao could return to Monaco as they await a decision from Manchester United.
Falcao is on a season-long loan from Monaco and United has a reported €55 million option to make the move permanent.
Falcao has started just 11 matches in the Premier League.
Monaco vice president Vadim Vasilyev told Canal Plus: "Never say never -- we're awaiting a decision from Manchester on Falcao.
"He wanted to leave, he wanted a challenge. With Manchester he had a challenge, because Manchester United are a bigger club than us.
"I'm not worried about Falcao. He's a great striker with great qualities and mentality. We're waiting for a decision from Manchester United. We're not going to start talks.
"The only thing I can promise is that the team will be competitive and will challenge for a top-three finish next year."
Via Ian Holyman/ESPN