Roma's Manu Kone, left, and Lazio's Matteo Guendouzi react after the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Players argue during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Roma's goalkeeper Mile Svilar, left, Roma's Gianluca Mancini, centre, Roma's Leandro Paredes during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Lazio's Alessio Romagnoli, left, scores his side's opening goal during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Roma's goalkeeper Mile Svilar, left, and Lazio's Gustav Isaksen during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Lazio's Gustav Isaksen, right, makes an attempt to score during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Roma's Matias Soule, left, in action against Lazio's Matteo Guendouzi during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Lazio's Luca Pellegrini, centre, in action during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Lazio's Gustav Isaksen, left, kicks the ball ahead of Roma's Evan Ndicka during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.

Roma's Leandro Paredes, left, challenges for the ball with Lazio's Mattia Zaccagni during the Italian Serie A soccer match between Lazio and Roma at Rome's Olympic stadium.