Kimi Antonelli and girlfriend Eliska Babickova unexpectedly stole the spotlight at the ATP Finals, drawing big reactions from fans across F1 and tennis.

The next two years are expected to be decisive for the future of tennis. Its calendar is the main battleground.

That year, Tsitsipas kicked off his ATP Finals campaign with back-to-back wins over Daniil Medvedev and Alexander Zverev. While the Greek lost to Nadal in his group-stage finale, he still reached the knock-out stage - where he impressively upset Federer in the semifinal and also beat Dominic Thiem in the final.

The pair avenged their defeat in the group stage to condemn Neal Skupski and Joe Salisbury to a sixth final defeat of the season