Video: Watch Mixtape of Cristiano Ronaldo, Lionel Messi's Champions League Goals

Lionel Messi and Cristiano Ronaldo have nine Champions League medals between them, and two of the biggest legends in the competition's history will be in quarterfinal action on the same night.

Messi and Barcelona face off against Manchester United in the matchup's first leg at Old Trafford on Wednesday.

Ronaldo, meanwhile, will hope to get Juventus off to a strong start against Ajax in Amsterdam.