The top-ranked player has showcased impressive dominance throughout 2025, securing multiple titles on the ATP Tour.
At Wimbledon, Jannik Sinner triumphed over Carlos Alcaraz in the finals, claiming his fourth Grand Slam title and his second of the year.
Taking some time off post-tournament, Sinner opted out of the Canadian Open and is set to return to action in Ohio for the Cincinnati Open.
Sinner’s Return to Cincinnati as the Defending Champion
Sinner will enter the Cincinnati Open as the number one seed and the defending champion, having won against America’s Frances Tiafoe in the previous year’s final.
Paolo Bertolucci’s Warning to Sinner
In a recent article for La Gazetta dello Sport, 1976 Davis Cup champion Paolo Bertolucci cautioned Sinner about the competition.
“Jannik must perform at a high level in Cincinnati to protect his rankings or recover lost points,” he stated. “He needs to be cautious of Spaniard Carlos Alcaraz, who is his only main competitor for the world number one position,” Bertolucci added.
Current Rankings Insights
As it stands, Sinner leads Alcaraz by 3,430 points in the world rankings; however, the caution from Bertolucci is warranted, as Sinner has significant points to defend in the upcoming months.
Looking ahead, Sinner must defend over 5,000 points compared to Alcaraz’s relatively low defense of just over 1,000 points, placing Sinner under pressure as he aims for a repeat as year-end number one.
Year-End Number One Achievements
Ending the year as the world’s top player is a notable milestone, achieved by only 19 players since 1973. Serbia’s Novak Djokovic holds the record for the most year-end finishes at number one with eight, while both Sinner and Alcaraz have achieved this feat once.
As the season progresses, it remains to be seen who will claim the top spot, but if Sinner can regain his stellar form from last season, he could very well finish the year as the world’s leading player once again.