Sinner has also had to overcome challenges off the court.
Such has been the consistency he has shown over the past 12 months, Sinner has kept hold of the world number one ranking despite serving a three-month doping ban earlier this year.
Sinner accepted the ban after the World Anti-Doping Agency found he “did not intend to cheat” but still bore responsibility for the negligence of members of his team after he twice tested positive for banned substance clostebol in March 2024.
That ban was served between the successful defence of his Australian Open title in January and the French Open – now the only trophy separating him from becoming just the ninth man to achieve a career Grand Slam.
Wimbledon women’s champion Iga Swiatek also served a one-month ban after testing positive for heart medication trimetazidine, which the International Tennis Integrity Agency (ITIA) accepted was caused by contamination.
Cahill previously described Sinner as being worn down physically and mentally by the investigation.
“His year has been challenging for everybody involved,” Cahill said on Sunday.
“The person that you see on the tennis court – this focus and attention to detail – is not the same guy off the court.
“He’s a fun-loving guy who is joking around all the time and loves the company of the people around him.
“He’s cooking, messing up stuff, making mistakes all over the place, and we’re laughing about it.”
With Sinner’s career now intertwined with that of Alcaraz, they appear destined to push each other to greater heights – and Sinner has proved beyond doubt that he is up to the task.