Manchester United boss Sir Alex Ferguson has told Angola striker Manucho Goncalves he is required for preseason training.
"This is great news because my dream is to play for Manchester United since I signed for them in January," he said. "I hope I can take my chance and prove that I can play in The Premier League.
"During my time in Greece, I feel that I've adapted well to European football and it's been a good test for me ahead of playing in England."