Porto have a top new young playerfor their B team which could go beyond next season. Kelvin Boateng, a 20 year-old attacker, has arrived on loan from Desportivo Aves with a purchase option.
Ryan Gauld has been sold to Farense from Sporting Lisbon. The Lisbon side will get 50% of the player's next transfer.
The former Red Devils winger is backing his countryman to be a success at Old Trafford if a proposed move in January is pushed through.