Inter Milan have signed Belgium striker Romelu Lukaku from Manchester United for a club record fee of 80m euros (£74m) on a five-year deal.
Lukaku, 26, scored 42 goals in 96 games for United but leaves just two years after his £75m move from Everton.
He becomes the third most expensive signing by a Serie A club after the Juventus duo of Cristiano Ronaldo (£99.2m) and Gonzalo Higuain (£75.3m).
In a statement, Manchester United said: “Everybody would like to thank Romelu for his efforts at the club and pass on our best wishes for the future.”
Lukaku scored 15 goals in 45 games for United last season but was often overlooked in favour of England striker Marcus Rashford by manager Ole Gunnar Solskjaer.
He did not feature in any of United’s pre-season games, with Solskjaer saying the player had an ankle injury.
Lukaku’s departure leaves United with just three established forwards – Rashford, Anthony Martial and Alexis Sanchez – in addition to youngsters Angel Gomes, Mason Greenwood and Tahith Chong.
United have spent £140m this summer on Harry Maguire, Aaron Wan-Bissaka and Daniel James.