Cristiano Ronaldo appeared to suffer a muscle injury on Monday for Portugal, with the European Championship holders chasing the game against Serbia.
The icon pulled up as he chased the ball down the left wing, and the Juventus superstar suddenly collapsed in pain.
Ronaldo received treatment but signalled to come off with his side losing 1-0 in the 28th minute.
TV presenter Adriano Del Monte called the action as Ronaldo went down:
Adriano Del Monteud83dude91 INJURY | Cristiano Ronaldo taken off for Portugal with an apparent hamstring injury. Sprinting, clutched his leg, immediately off.