Scouts from both Chelsea and Manchester United were in attendance to watch January transfer target Moussa Dembele score in Lyon's French League Cup win on Wednesday night.
The striker is wanted by both Premier League clubs this month as they look to bolster their attacking options going into the final few months of the season.
Chelsea had a bid rejected for him by Lyon last week but Sportsmail understands the Blues are still keen on the 23-year-old despite his current side saying they have no intention of selling him.