The defending ATP Finals champion Daniil Medvedev is the first player to secure the semi-final berth in Turin, beating Alexander Zverev 6-3, 6-7, 7-6 in two hours and 35 minutes. Medvedev earned the fifth consecutive triumph over Zverev within a year, prevailing in the decisive moments to add 200 points to his tally and advance into the last four.
The Russian won eight points more than his opponent and fended off all four break chances, three at the beginning of the clash and the pivotal one at 5-5 in the decider. Alexander got broken once in the opener and fought well after that, creating his chances in the final set's tie break but ending on the losing side as always after losing the opening set at the ATP Finals.
Zverev had more winners and more unforced errors, and it was not enough in the end, trailing in the shortest and mid-range exchanges and playing some loose shots in the final tie break to experience the first loss in Turin.
Daniil Medvedev is through to the ATP Finals semi-final.
Daniil erased two break points in the encounter's opening game and held with an ace to avoid an early setback. The Russian grabbed a break in the second game with a volley winner and saved a break point in the next one to open a 3-0 gap.
Doing everything right so far, Medvedev landed a volley winner at the net in the seventh game to remain in front and held at 15 at 5-3 to close the opener in 37 minutes. Zverev fended off two break chances at the beginning of the second set and saved another at 3-3 with a smash winner to remain on the positive side.
Medvedev held at love in game eight, and he was a better player on the court throughout the set. Still, Alexander served well in the remaining games to reach a tie break and gathered momentum after Daniil's questionable foot fault at 1-1.
The German claimed the tie break 7-3 and gained a boost ahead of the decider. Finding his strokes, Alexander stayed in touch with the better-ranked opponent in the opening ten games and created a break chance at 5-5 that could have pushed him through.
Medvedev saved it with a service winner and introduced a tie break, where he fell 4-2 behind. Zverev missed an open court with his backhand in the ninth point to find himself 5-4 down before erasing two match points at 4-6 with winners.
Remaining calm, Daniil placed a forehand down the line winner in the 13th point and converted the third match point after forcing Alexander's mistake to celebrate the fifth straight victory over a great rival.