Prince Harry decided to give the England rugby players some encouragement by popping in to watch their training session on Thursday.
Stuart Lancaster's side are still in contention for the Six Nations title ahead of Saturday's decider against France at Twickenham.
The royal family member was photographed chatting with Lancaster while watching the players train at Penny Hill Park in Surrey.
"He was just there as a supporter to observe what we were doing," the Daily Mail quotes Lancaster as saying. "There were no motivational talks."
Prince Harry, who wore an official England rugby jacket to the training session, will be at Twickenham to watch the crucial encounter.