Every potential pairing of Barcelona, Bayern Munich, Juventus and Real Madrid — sharing 21 European Cup or Champions League titles, and 16 runner-up finishes — is loaded with history.Still, two possible storylines stand out.
Bayern coach Pep Guardiola could face former team Barcelona for the first time since leaving in 2012 after a trophy-laden four-year spell included two Champions League titles.
A Barca-Juve pairing would reunite Luis Suarez and Giorgio Chiellini for the first time since the Uruguay forward bit the Italy defender in a World Cup match last June.
First-leg matches are played May 5-6. Return matches are May 12-13.
The final is June 6 in Berlin.
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