Roma players applaud the fans at the end of the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Roma's Leandro Paredes heads the ball during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Porto's Pepe runs with the ball past Roma's Tommaso Baldanzi during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Referee Tobias Stieler a red card to Roma's Bryan Cristante after a second yellow during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Roma's Evan Ndicka vies for the ball with Porto's Samu Omorodion, left, during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Porto's Tiago Djalo leaps over Roma's Lorenzo Pellegrini during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

Roma players celebrate after scoring the opening goal past Porto's goalkeeper Diogo Costa, left, during the Europa League playoff first leg soccer match between FC Porto and AS Roma at the Dragao stadium in Porto, Portugal.

FC Midtjylland's Adam Buksa celebrates after scoring their side's first goal of the game during the Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.

Real Sociedad goalkeeper Unai Marrero clears the ball during the Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.

Real Sociedad's Jon Aramburu, left, controls the ball during a Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.

Real Sociedad's Takefusa Kubo, left, celebrates after scoring their side's second goal of the game during the Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.

Real Sociedad's Takefusa Kubo dribbles during a Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.

Real Sociedad's Jon Balda, right, against FC Midtjylland's Dario Osorio battle for the ball during a Europa League soccer match between FC Midtjylland and Real Sociedad at MCH Arena in Herning, Denmark.