Roma midfielder Alessandro Florenzi has broken down in training.
Florenzi is still recovering from surgery for a torn anterior cruciate ligament in his left knee on October 26, 2016.
He twisted his left knee during today's training session with the Primavera youth squad.
“He will be rested for two days and receive pain-killing treatment," read a statement.
“The extent of the injury will be established on Friday after medical tests and a specialist consultation with Dr Mariani."