Juventus forward Cristiano Ronaldo injured his hamstring in Portugal's Euro 2020 qualifier against Serbia on Monday.
Ronaldo injured himself while running unchallenged in the 28th minute. He quickly realised he was in serious pain and asked to be taken off.
In the 30th minute, he was replaced by Pizzi.
Pending further tests, it appears Ronaldo suffered a hamstring problem and could be sidelined for a while.
Juve will hope it's nothing serious. His hat-trick against Atletico Madrid recently set up a quarterfinal against Ajax next month.
The Italian side will face a nervous wait to find out how serious the Portuguese forward's injury is.