Maralem Pjanic (C) of AS Roma celebrates for his goal during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Maralem Pjanic (1st, L) of AS Roma shoots for goal during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Francesco Totti (L) of AS Roma vies for the ball during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Francesco Totti (Bottom) of AS Roma reacts during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Daniele De Rossi (R) of AS Roma vies for the ball during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Maralem Pjanic (1st, L) of AS Roma celebrates for his goal during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Maralem Pjanic (L) of AS Roma celebrates for his goal during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Kevin Strootman (Front) of AS Roma vies for the ball during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)

Maralem Pjanic (L) of AS Roma vies for the ball during their Serie A soccer match against Napoli at Olympic stadium in Rome, on Oct. 18, 2013. AS Roma won 2-0. (Xinhua/Alberto Lingria)