Barcelona, Manchester City, Juventus
Fans cheer prior to the Round of 16, second-leg UEFA Champions League match Borussia Dortmund vs Juventus in Dortmund, western Germany on March 18, 2015.PATRIK STOLLARZ/AFP / Getty Images
Barcelona's supporters wave flags during the UEFA Champions League round of 16 match FC Barcelona vs Manchester City at the Camp Nou stadium in Barcelona.LLUIS GENE/AFP / Getty Images
Dortmunds fans cheer their team ahead of the Round of 16, second-leg UEFA Champions League match Borussia Dortmund vs Juventus in Dortmund, western Germany on March 18, 2015.TOBIAS SCHWARZ/AFP / Getty Images
Carlos Tevez of Juventus scores the opening goal during the UEFA Champions League Round of 16 match between Borussia Dortmund and Juventus at Signal Iduna Park on March 18, 2015 in Dortmund.Alex Grimm
Juventus players celebrate after scoring the opening goal during the Champions League round of 16 second leg soccer match between Borussia Dortmund and Juventus.Martin Meissner/The Associated Press
Barcelona's Uruguayan forward Luis Suarez, left, vies with Manchester City's Belgian defender Vincent Kompany during the UEFA Champions League round of 16 match FC Barcelona vs Manchester City at the Camp Nou stadium in Barcelona.LLUIS GENE/AFP / Getty Images
Barcelona's Argentinian forward Lionel Messi kicks a ball duing the UEFA Champions League round of 16 match FC Barcelona vs Manchester City at the Camp Nou stadium in Barcelona.LLUIS GENE/AFP / Getty Images
Dortmund's Kevin Kampl, left, and Juventus's Arturo Vidal challenge for the ball during the Champions League round of 16 second leg soccer match between Borussia Dortmund and Juventus.Martin Meissner/The Associated Press
Dortmund's midfielder Sven Bender and Turin´s Carlos Teves vie for the ball.PATRIK STOLLARZ/AFP / Getty Images
Manchester City's James Milner falls to the pitch.Carl Recine/Reuters
Ivan Rakitic of Barcelona lifts the ball over Joe Hart of Manchester City to score the opening goal during the UEFA Champions League Round of 16 second leg match between Barcelona and Manchester City.Michael Regan/Getty Images
Barcelona's Lionel Messi is tripped during a Champions League round of 16 second leg, soccer match between FC Barcelona and Manchester City.Manu Fernandez/The Associated Press
Manchester City's Martin Demichelis in action with Barcelona's Luis Suarez.Carl Recine/Reuters
Arturo Vidal of Juventus challenges Marcel Schmelzer of Borussia Dortmund.INA FASSBENDER/Reuters
Manchester City's David Silva is shown a yellow card from referee Gianluca Rocchi.Emilio Morenatti/The Associated Press
Barcelona's Lionel Messi reacts after missing a chance to score against Manchester City.ALBERT GEA/Reuters
Barcelona's Uruguayan forward Luis Suarez vies with Manchester City's Ivorian midfielder Yaya Toure.QUIQUE GARCIA/AFP / Getty Images
Barcelona's Jordi Alba, right, challenges Manchester City's Jesus Navas.Manu Fernandez/The Associated Press
Dortmund's goalkeeper Roman Weidenfeller, left, deflects a shot by Juventus' Alvaro Morata, right.Martin Meissner/The Associated Press