Radja Nainggolan could be out for several weeks due to injury

Inter Milan have suggested that midfielder Radja Nainggolan could be out for several weeks, starting with Wednesday's Champions League match at Barcelona, after he suffered a sprained ankle during the derby against AC Milan on Sunday.

The combative 30-year-old, Inter's prize signing in the close season when he joined the club for 38 million euros ($44 million) from AS Roma, was injured during the first half in a challenge by Milan midfielder Lucas Biglia.

"The results confirmed that he has sprained his left ankle. The midfielder's condition will be reassessed in the coming weeks," said Inter in a statement.