Dominance at the top of the men's game is nothing new.
As age caught up with Roger Federer, Rafael Nadal and Novak Djokovic, thoughts turned to the void left by the 'Big Three', who won 66 of the 78 Grand Slams held between 2004 and 2023.
Carlos Alcaraz and Jannik Sinner have shattered any expectation of the men's majors being blown wide open.
The pair have swept the past eight Grand Slams and dominated the ATP Tour, leading to one question: can anybody stop them in 2026?
"I see a lot of guys who can start to become a threat if they progress, but to say this person will be a threat next season is difficult," Patrick Mouratoglou, who coached 23-time major singles champion Serena Williams between 2012 and 2022, told BBC Sport.