BENGALURU, Dec 17 (Reuters) - Carlos Alcaraz and Jannik Sinner turned 2025 into a gripping tug-of-war for tennis supremacy by carving up the Grand Slams for a second straight year, while the women's game showcased depth and drama with four different major champions.

Sinner's dominant victory over Alexander Zverev at the start of the season helped him retain his Australian Open title and become the first Italian to capture three majors, moving past Nicola Pietrangeli who won back-to-back French Opens in 1959-60.