British No 2 Cameron Norrie suffered a third-round exit on the Shanghai Masters following a straight-sets defeat to American teenager Learner Tien.
The 30-year-old was crushed 7-6 (4) 6-3 as Tien, 19, continued his positive kind after ending runner-up to Jannik Sinner on the China Open final week.
Norrie, seeded thirtieth, battled again from a break right down to serve for the opening set in sport 12 earlier than being edged out within the tie-break.
He was unable to capitalise on three break factors in sport 4 of set two after which dropped his subsequent service sport to like as momentum shifted again in favour of his opponent.
Californian Tien additionally saved three break factors in sport eight en path to progressing into the fourth spherical in an hour and 48 minutes.
Norrie had claimed his first win since September’s US Open when he beat Frenchman Arthur Cazaux in a third-set tie-break within the previous spherical.
He was knocked out by Novak Djokovic within the third spherical at Flushing Meadows earlier than struggling back-to-back defeats in Chengdu and Beijing.
The five-time ATP Tour winner appeared to be on the up however was unable to energy previous Tien in Shanghai.
Zverev knocked out by 54th-ranked Rinderknech
Third-seeded Alexander Zverev was knocked out of the Shanghai Masters after struggling defeat to 54th-ranked Arthur Rinderknech on Monday.
Zverev, who was the highest-ranked participant left within the draw, started the match positively after taking the primary set however then struggled for the rest of the match, dropping 6-4 3-6 2-6.
After the primary set, Zverev was unable to interrupt serve once more with Rinderknech getting a break within the second set after which two within the third to say his win.
Rinderknech additionally beat Zverev in 5 units throughout the first spherical at Wimbledon this summer time and can subsequent play Jiri Lehecka, who defeated Denis Shapovalov 6-4 6-4.
“This is huge,” Rinderknech mentioned. “I had my first top-5 win at a Grand Slam at Wimbledon against Sascha and it happens again.
“I assume I’m a bit fortunate in opposition to him and in a position to play my finest tennis. I have to play my finest tennis to beat a man like Sascha, at No 3 for a few years, such a gentle participant and an excellent participant.”
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