Sir Alex Ferguson was handed an unbelievable send off as West Brom battled back to claim a 5-5 draw on Sunday - bringing an end to their season as well as Ferguson's era as United manager.
The Red Devils started the game brilliantly with Shinji Kagawa opening the scoring just six minutes in. Jonas Olsson directed the ball into his own goal before Alex Buttner made it 3-0.
James Morrison pulled a goal back before Romelu Lukaku scored their second five minutes after the break. Robin van Persie and Javier Hernandez then made it 5-2 but Lukaku completed his hat-trick with strikes on either side of a goal from Youssuf Mulumbu to share the spoils.
The first goal came just six minutes in when Hernandez swung a superb cross to the near post where Kagawa thumped a downward header past former United goalkeeper Ben Foster.
Three minutes later a vicious cross from Antonio Valencia was poked in by Olsson and Buttner would make it 3-0 on the half-hour mark with a low shot into the bottom corner after being slipped in by Tom Cleverly.
Morrison tucked away a low cross five minutes before the break but his celebration was muted as United went into the break well in control.
The Baggies would have a superb start to the second period though as substitute Lukaku somehow squeezed a shot past Anders Lindegaard.
United were not panicking though as Van Persie buried a cross from Valencia before Hernandez met a ball in from Ryan Giggs to finish from close range.
Still, West Brom refused to give in an two goals in as many minutes brough the Baggies right back in it. Lukaku burst through and tucked a low drive past the goalkeeper before Mulumbu produced a calm finish from a low cross moments later to make it 5-4.
The action swung from end-to-end but Lukaku would have the final say when he bundled home a scrappy goal to complete his hat-trick as the game ended 5-5.