Luis Suarez broke down in tears after being forced out of Atletico Madrid's Champions League win over Porto with an injury.
The 34-year-old striker was spotted sobbing on the Atletico substitutes bench after muscle pain forced him out of the crucial group stage game.
The former Liverpool man signalled to the bench early on that he was unable to continue and was replaced by Matheus Cunha. Atletico said Suarez will undergo further tests in Madrid.
Suarez at least had a front row seat for a barnstorming and bad-tempered game which saw Atletico win 3-1 to secure second spot in Group B behind Liverpool and reach the knockout stages.