Real Madrid's Cristiano Ronaldo controls the ball during a Group A Champions League soccer match between Real Madrid and Shakhtar Donetsk at the Santiago Bernabeu stadium in Madrid, Spain, Tuesday, Sept. 15, 2015. (AP )

Real Madrid's Cristiano Ronaldo fights for the ball during a Group A Champions League soccer match between Real Madrid and Shakhtar Donetsk at the Santiago Bernabeu stadium in Madrid, Spain, Tuesday, Sept. 15, 2015. (AP)

Real Madrid's Karim Benzema kicks the ball before scoring the opening goal during a Group A Champions League soccer match between Real Madrid and Shakhtar Donetsk at the Santiago Bernabeu stadium in Madrid, Spain, Tuesday, Sept. 15, 2015. (AP )

AS Roma's Antonio Rudiger (L) challenges Barcelona's Lionel Messi during their Champions League Group E stage match at the Olympic stadium in Rome, Italy , September 16, 2015. (Reuters)

Barcelona's Neymar controls the ball as Roma's Alessandro Florenzi, right, and Roma's Mohamed Salah look at him, during a Champions League, Group E soccer match between Roma and Barcelona, at Rome's Olympic stadium Wednesday, Sept. 16, 2015. (AP)

Barcelona's Neymar, left, challenges for the ball with Roma's Alessandro Florenzi during the Champions League Group E soccer match between Roma and Barcelona in Rome's Olympic stadium, Italy, Wednesday, Sept. 16, 2015. (AP )

Barcelona's Lionel Messi challenges for the ball with Roma's Lucas Digne during the Champions League Group E soccer match between Roma and Barcelona in Rome's Olympic stadium, Italy, Wednesday, Sept. 16, 2015. (AP)

Roma's Mohamed Salah, right, and Barcelona's Gerard Pique vie for the ball during a Champions League, Group E soccer match between Roma and Barcelona, at Rome's Olympic stadium Wednesday, Sept. 16, 2015. (AP)

Roma's Mohamed Salah, left, and Barcelona's Jeremy Mathieu vie for the ball during a Champions League, Group E soccer match between Roma and Barcelona, at Rome's Olympic stadium Wednesday, Sept. 16, 2015. (AP)

AS Roma's Edin Dzeko (L) challenges Barcelona's Gerard Pique' during their Champions League Group E stage match at the Olympic stadium in Rome, Italy , September 16, 2015 (Reuters)

Football - PSV Eindhoven v Manchester United - UEFA Champions League Group Stage - Group B - Philips Stadion, Eindhoven, Netherlands - 15/9/15 Manchester United's Ashley Young in action Action Images via (Reuters)

Manchester United's Memphis Depay breaks thru defense to score his sides first goal during the Champions League Group B soccer match between PSV and Manchester United at Philips stadium in Eindhoven, Netherlands, Tuesday, Sept. 15, 2015. (AP Photo/Peter Dejong)

Football - PSV Eindhoven v Manchester United - UEFA Champions League Group Stage - Group B - Philips Stadion, Eindhoven, Netherlands - 15/9/15 (Reuters)

Juventus' Alvaro Morata, right, scores his sides second goal during the Champions League group D soccer match between Manchester City and Juventus at the Etihad Stadium, Manchester, England, Tuesday, Sept. 15, 2015. (AP)

Juventus' players celebrates after the Champions League group D soccer match between Manchester City and Juventus at the Etihad Stadium, Manchester, England, Tuesday, Sept. 15, 2015. Juventus won the match 2-1. (AP)

Zagreb's El Arabi Hilal Soudani, right, steers the ball away from Arsenal's Laurent Koscielny during a Champions League Group F soccer match between Dinamo Zagreb and Arsenal at the Maksimir Stadium in Zagreb, Croatia, Wednesday Sept. 16, 2015. (AP )

Arsenal's Joel Campbell, centre, jumps to control a high ball during a Champions League Group F soccer match between Dinamo Zagreb and Arsenal at the Maksimir Stadium in Zagreb, Croatia, Wednesday Sept. 16, 2015. (AP )

Football - Dinamo Zagreb v Arsenal - UEFA Champions League Group Stage - Group F - Maksimir Stadium, Zagreb, Croatia - 16/9/15 Arsenal's Laurent Koscielny in action with Zagreb's El Arabi Hilal Soudani Action Images via (Reuters)