1 Paris Masters 2021 Round-of-32 (Winner: Alcaraz) 
The rivalry between Carlos Alcaraz and Jannik Sinner was birthed here in their first ATP-tour encounter. The then 18-year-old Spaniard showcased his power-hitting capabilities to beat the then 20-year-old Italian 7-6 (7-1), 7-5 in a closely fought match.

2 Croatian Open 2022 Final (Winner: Sinner)
Facing each other with a championship on the line for the first time, it was Sinner who prevailed. The current World No. 2 recovered from a set down to win the tie 6-7 (5-7), 6-1, 6-1 despite Alcaraz’s solid defensive display that earned plaudits from pundits and fans alike.