Stefanos Tsitsipas offers gift-giving suggestion after sending Dominic Thiem into ATP Finals semifinals.
Andrey Rublev's candid reaction to double-faulting on match point in his loss to Stefanos Tsitsipas.
Dominic Thiem targets one area where he can improve his game even more.
Daniil Medvedev dished out the successful underhand serve vs. Alexander Zverev.
Diego Schwartzman sums up the degree of difficulty facing Novak Djokovic simply.
The World No.1 says that the best-of-three format is best for the future of tennis.
US Open champion handicaps ATP Finals field.
