Italian Mattia Bellucci had just six career match wins heading into the 2025 season before producing his best year on Tour to earn 12 match wins and climb to World No. 63. His breakout result came at the ATP 500 in Rotterdam, where he defeated No. 7 Daniil Medvedev and No. 12 Stefanos Tsitsipas to reach the semifinals. He also reached the Marrakech quarterfinals and Wimbledon third round. He will make his Indian Wells main-draw debut this year.