Manchester United boss Sir Alex Ferguson has expressed his desire for players who take part in Euro 2012 not to be called up to play in the London Olympics next August.
The Football Association did not rule out the possibility of British players appearing in both tournaments when Stuart Pearce was confirmed as manager of the Team GB football team for the London Games at a press conference on Thursday.
And Team GB chef de mission Andy Hunt claimed home nations associations would "not stand in the way of any player who wants to be involved''.
But Ferguson, who could face the prospect of youngsters Tom Cleverley, Chris Smalling and Phil Jones being selected for both teams, as well as the potential inclusion of Wayne Rooney as an overaged player for Team GB, thinks it is unrealistic to expect players to double up.
"This has been spurred by Argentina and Nigeria sending out their strongest teams (to the Olympics) last time,'' Ferguson said. "That has given the BOA [British Olympic Association] an opening. But our league is different.
"Players need their rest and to recover. I do not see how it is possible (doubling up with Euros). I am sure what I am saying won't make any difference but it is a fact.''