 Complete the following phrase:  In the final, they met first-time finalists Villarreal, Uniteds third Spanish opposition this season. The clubs previously met four times, in the 200506 and 200809 Champions League group stages. All ended in goalless draws. The final was held on 26 May 2021, on the 22nd anniversary of the now-manager Ole Gunnar Solskjærs winning goal in the UEFA Champions League final and also would have been the 112th birthday of former manager Matt Busby, who won the club its first European title in 