Lyon have indicated they may be prepared to do a deal with Manchester United for midfielder Mahamadou Diarra - in part exchange for out-of-favour striker Ruud van Nistelrooy.
Red Devils manager Sir Alex Ferguson has been to watch Mali international Diarra, who he sees as a long-term replacement for Roy Keane who left United by mutual consent last November.
The French champions are believed to want £25million for the 24-year-old, but club official Bernard Lacombe has indicated they may accept a cash-plus-player deal involving Van Nistelrooy.
'It is sure Lyon are interested in Van Nistelrooy,' Lacombe told the Daily Star.
'For the moment we have not officially negotiated with Manchester. It will be a complicated financial deal unless we can exchange one of our players they are interested in, like Diarra.'
Van Nistelrooy appears to be on his way out of Old Trafford after he was left out for the final Premiership match of the season against Charlton and then banned from appearing in Keane's testimonial against Celtic last week.