If it wasn’t for a pretty sizeable release clause in his contract, one of Euro 2024’s heroes could be a Manchester United player these days. As far as his former coach is concerned, meanwhile, it is only a matter of time before the man who carried his side into the quarter-finals is turning out for one of the great teams of the planet at club level too. Manchester United looked destined to bring Diogo Costa to Old Trafford back in 2023 when it emerged that Erik ten Hag was ready to move on from David de Gea. That was, however, until it emerged that Andre Onana was available for nearly £20 mill…