The Real Madrid striker looked nailed-on to join the Red Devils during the summer transfer window after many weeks of negotiations between the two sides.
But the move fell through, with Jose Mourinho instead snapping up Everton forward Romelu Lukaku for a huge fee of £75m.
It's been claimed today that the move didn't go ahead because Real Madrid were unsure whether or not to sell the Spain international.
However, it seems Morata certainly thought he was on his way to Old Trafford.
The 24-year-old is currently training with Zinedine Zidane's side in Los Angeles.
He sported a buzz cut for the session yesterday, but his hair has a reddish hue to it.
Was the ex-Juventus star planning something special for Manchester United fans at his expected unveiling?
Chelsea are now thought to be lining up a move for Morata after being beaten to the signature of Lukaku.
Click through the gallery above to see photos of Alvaro Morata in training with Real Madrid today.
