Many top European clubs are dealing with the unwanted headache of the Olympics tournament taking place in late July and early August. Argentina made a request to use Alejandro Garnacho at the tournament, a decision Manchester United have now rejected. Others have not shown the same firm hand, and Olympic hosts France are determined to put together a strong squad for the tournament. One of the names called up is Michael Olise, report RMC Sport, with the Premier League winger named in the squad by under-21 coach Thierry Henry. READ: Manchester United confirmed signings, transfers in, out, loan e…