Cristiano Ronaldo's iconic 'siu' celebration is beloved by soccer fans worldwide - including Novak Djokovic, who mimicked the Portuguese star during a kickaround at Indian Wells.
The Serbian is in California to participate in the BNP Paribas Open, which he last won in 2016.
But he got a casual game of soccer in before beginning his tournament, with a video posted to X on Friday showing him scoring past fellow tennis star Stefanos Tsitsipas.
Djokovic passed the ball into the net around Tsitsipas' leg before wheeling in celebration and channeling his inner Ronaldo.