Novak Djokovic and Rafael Nadal have met more than any other two men in the Open era - and the pair are ready to resume their long-standing rivalry once again in the French Open semi-finals.
The pair have faced each other 57 times, with Djokovic leading 29-28 after Nadal won the past two meetings.
The winner will play Stefanos Tsitsipas or Alexander Zverev in Sunday's final.
Greek fifth seed Tsitsipas, 22, and German sixth seed Zverev, 24, are both aiming for a first Grand Slam triumph and play in Friday's opening match on Court Philippe Chatrier (13:50 BST).