Should Rafael Nadal win this year's US Open, he will not only claim a record 23rd Grand Slam singles title but also return to number one in the rankings.
Nadal is currently the world number three behind Daniil Medvedev and Alexander Zverev, but would leapfrog them both if he emerges victorious at Flushing Meadows for the fifth time in his career.
In the process, Nadal could become the oldest year-end world number one at the age of 36 if he is able to hold onto that spot for the remainder of the season. And that would see the Spaniard break a record currently held by rival Novak Djokovic, who was the year-end world number one last year at the age of 34.
