Chelsea's Demba Ba (R) celebrates after scoring a goal against Steaua Bucharest during their Champions League soccer match at Stamford Bridge in London December 11, 2013 (Photo: Reuters)
Chelsea's John Terry shoots at goal during the Champions League Group E soccer match between Chelsea and Steaua Bucharest at Stamford Bridge Stadium in London Wednesday, Dec. 11, 2013 (Photo: AP)
Chelsea's Eden Hazard, right, takes a shot at goal during the Champions League Group E soccer match between Chelsea and Steaua Bucharest at Stamford Bridge Stadium in London Wednesday, Dec. 11, 2013 (Photo: AP)
Chelsea's Demba Ba, centre, celebrates the opening goal with Chelsea's Oscar during the Champions League Group E soccer match between Chelsea and Steaua Bucharest at Stamford Bridge Stadium in London Wednesday, Dec. 11, 2013 (Photo: AP)
Schalke 04's Adam Szalai (centre, L) and Joel Matip celebrate Matip's goal
during their Champions League group E soccer match against FC Basel in Gelsenkirchen December 11, 2013 (Photo: Reuters)
Schalke's scorer Julian Draxler celebrates his side's opening goal in front of Schalke's supporters during the Champions League Group E soccer match between FC Schalke 04 and FC Basel in Gelsenkirchen, Germany, Wednesday, Dec. 11, 2013 (Photo: AP)
Schalke's Atsuto Uchida, left, and Basel's Mohamed Salah challenge for the ball during the Champions League group E soccer match between FC Schalke 04 and FC Basel in Gelsenkirchen, Germany, Wednesday, Dec.11,2013 (Photo: AP)
Dortmund's Kevin Grosskreutz, celebrates his side's 2nd goal during the Group F Champions League soccer match between Olympique Marseille and Borussia Dortmund at the Velodrome stadium in Marseille, Southern France, Wednesday, Dec. 11, 2013 (Photo: AP)
Olympique Marseille's Florian Thauvin challenges Borussia Dortmund's Kevin Grosskreutz during their Champions League soccer match at the Velodrome stadium in Marseille, December 11, 2013 (Photo: Reuters)
Dortmund's Henrikh Mkhitaryan, left, challenges for the ball with Marseille's Benjamin Mendy during the Group F Champions League soccer match between Olympique Marseille and Borussia Dortmund at the Velodrome stadium in Marseille, Southern France, Wednesday, Dec. 11, 2013 (Photo: AP)
Dortmund head coach Juergen Klopp, 2nd right, congratulates his player, Kevin Grosskreutz, who scored the winning goal at the end of the Group F Champions League soccer match between Olympique Marseille and Borussia Dortmund at the Velodrome stadium in Marseille, Southern France, Wednesday, Dec. 11, 2013 (Photo: AP)
Napoli's Valon Behrami (L) challenges Arsenal's Mikel Arteta during their Champions League soccer match at San Paolo stadium in Naples, December 11, 2013 (Photo: Reuters)
Napoli's Jose Callejon, foreground right, reacts at the end of a Champions League, group F, soccer match between Napoli and Arsenal, at the Naples San Paolo stadium, Italy, Wednesday, Dec. 11, 2013 (Photo: AP)
Arsenal's Arteta, center, goes for the ball as teammate Mathieu Flamini, left, Napolis' Goran Pandev, right, and Gonzalo Higuain, second right, wacth him, during a Champions League, group F, soccer match at the Naples San Paolo stadium, Italy, Wednesday, Dec. 11, 2013. (Photo: AP)
Napoli's Gonzalo Higuain (R) celebrates with team mates after scoring against Arsenal during their Champions League soccer match at San Paolo stadium in Naples, December 11, 2013 (Photo: Reuters)
Atletico's Diego Costa, center, celebrates his goal with teammates during a Champions League Group G soccer match between Atletico Madrid and FC Porto, at the Vicente Calderon stadium in Madrid, Wednesday, Dec. 11, 2013. (Photo: AP)
Porto's Eliaquim Mangala, center, jumps to head the ball towards the goal during a Group G Champions League soccer match between Atletico Madrid and FC Porto at the Vicente Calderon stadium in Madrid, Wednesday Dec. 11, 2013. (Photo: AP)
Portos Nabil Ghilas (R) reacts during their Champions League soccer match against Atletico Madrid at Vicente Calderon stadium in Madrid December 11, 2013 (Photo: Reuters)
Austrian police prepare to clear the tribune after Zenit St Petersburg's fans threw fireworks during the Champions League soccer match against Austria Vienna in Vienna December 11, 2013 (Photo: Reuters)
Austria Vienna players celebrate after scoring against Zenit St Petersburg during their Champions League soccer match in Vienna December 11, 2013 (Photo: Reuters)
AC Milan and Ajax Amsterdam players stand behind a banner in tribute to the life of Nelson Mandela ahead of their Champions League group H soccer match at the San Siro stadium in Milan December 11, 2013 (Photo: Reuters)
AC Milan's Mario Balotelli (rear) and Ajax Amsterdam's Stefano Denswil fight for the ball during their Champions League soccer match at the San Siro stadium in Milan December 11, 2013 (Photo: Reuters)
AC Milan's Mario Balotelli (L) fights for the ball with Ajax Amsterdam's Daley Blind during their Champions League soccer match at the San Siro stadium in Milan December 11, 2013 (Photo: Reuters)
Barcelona's Neymar celebrates after scoring his third goal during a Group H Champions League soccer match between FC Barcelona and Celtic FC at the Camp Nou stadium in Barcelona, Spain, Wednesday Dec. 11, 2013.(Photo: AP)
Barcelona's Gerard Pique, background right, eyes the ball during a Group H Champions League soccer match between FC Barcelona and Celtic FC at the Camp Nou stadium in Barcelona, Spain, Wednesday Dec. 11, 2013 (Photo: AP)
FC Barcelona's Gerard Pique, center, celebrates with teammates after scoring against Celtic during a Champions League soccer match group H at the Camp Nou in Barcelona, Spain, Wednesday, Dec. 11, 2013 (Photo: AP)