Bothered by the heat and stifling humidity, Eugenie Bouchard felt dizzy and her vision was blurry. She got her blood pressure checked. Plastic bags filled with ice were rubbed on her shoulders, arms and legs during a second-set medical timeout.

Bouchard tried to carry on, but it was hardly an ideal time to try to win a tennis match. The No.7-seeded Bouchard became the latest top woman to bow out at this surprise-filled US Open, beaten 7-6 (2), 6-4 Monday by 17th-seeded Ekaterina Makarova of Russia in the fourth round. It ended Bouchard’s streak of making at least the semifinals at each Grand Slam tournament this year. That included a runner-up finish at Wimbledon in July.

“I definitely felt a lot of outside expectations and pressure to win matches. I felt more like it’s normal if I win, and it’s a bit more of a disaster when I lose,” Bouchard said. “But that’s something that I need to block out.”

In muggy air, with the temperature in the high 80s (above 30 Celsius), Bouchard began having trouble from the middle of the first set and was checked on by a trainer during the changeover after the second set’s fifth game. During that delay, Makarova cooled down by putting ice bags on herself.

Asked what went through her mind during Bouchard’s medical break, Makarova smiled. “Well, actually, I thought, ‘Thanks,’ because I also was tired,” Makarova said with a smile. “It was really (helpful) for me also.”

It’s not the first time Bouchard has been affected by heat, saying it happened at last year’s US Open, too, and as a junior at the Australian Open. “Once in a while, I get a little bit light-headed,” Bouchard said. “That’s what happens.”

Her exit means that for the first time since 1977, eight women will have filled the eight finalist slots at a season’s Grand Slam tournaments.

Petra Kvitova defeated Bouchard at Wimbledon; Kvitova departed in the third round in Flushing Meadows against 145th-ranked qualifier Aleksandra Krunic, who tried to pull off another shocker against two-time US Open runner-up Victoria Azarenka but couldn’t quite do it. Azarenka, a two-time Australian Open champion, took four of the last five games to win 4-6, 6-4, 6-4 on Monday night. At the French Open in June, Maria Sharapova edged Simona Halep; Sharapova lost to Caroline Wozniacki in the fourth round in New York, and Halep went out in the third round against qualifier Mirjana Lucic-Baroni.

And at the Australian Open in January, Li Na beat Dominika Cibulkova; Li didn’t even enter the US Open because of a knee injury, and Cibulkova was stunned by 15-year-old American CiCi Bellis in the first round.

While Makarova is into the US Open quarterfinals for the second year in a row, Bouchard’s early-for-her major exit certainly fits with the way things have gone the past eight days. Of the top 10 seeded women, only two remain: No.1 Serena Williams and No.10 Wozniacki.

The top-seeded man, Novak Djokovic, played mostly mistake-free tennis, making only 19 unforced errors and facing only two break points – both saved – in a 6-1, 7-5, 6-4 victory over 22nd-seeded Philipp Kohlschreiber of Germany.

Djokovic, the 2011 US Open champion, earned a spot in the quarterfinals at the US Open for the eighth year in a row – and at a 22nd consecutive Grand Slam tournament overall. The last time Djokovic was eliminated before the quarterfinals at a major was a third-round loss to Kohlschreiber at the 2009 French Open. Djokovic now meets two-time major champion Andy Murray, who got past No. 9 Jo-Wilfried Tsonga 7-5, 7-5, 6-4.

Key results

MEN: (Fourth Round): (1) N Djokovic bt (22) P Kohlschreiber 6-1, 7-5, 6-4; (3) S Wawrinka bt (16) T Robredo 7-5, 4-6, 7-6 (7), 6-2; (10) K Nishikori bt (5) M Raonic 4-6, 7-6 (4), 6-7 (6), 7-5, 6-4 (8) A Murray bt (9) Jo-Wilfried Tsonga 7-5, 7-5, 6-4. WOMEN: (Fourth Round): (1) S Williams bt K Kanepi 6-3, 6-3; (17) E Makarova bt (7) E Bouchard 7-6 (2), 6-4; (11) F Pennetta bt (29) C Dellacqua 7-5, 6-2; (16) V Azarenka bt A Krunic 4-6, 6-4, 6-4.

Sania advances

New York: Indian tennis ace Sania Mirza stormed into the mixed doubles semifinals besides reaching the doubles quarterfinals, but compatriot Leander Paes exited the US Open with unexpected defeats in both his events. Top seeds Sania alongside Brazilian partner Bruno Soares beat the Indo-Slovenian duo of Rohana Bopanna and Katarina Srebotnik 7-5 2-6 10-5 in the mixed doubles quarterfinals at Flushing Meadows on Tuesday.

Sania-Soares will take on the unseeded Yung-Jan Chan of Chinese Taipei and Britain’s Ross Hutchins in the semifinals. The Hyderabadi made the women’s quarterfinals with Cara Black, defeating Czech-Serbian combine of Klara Koukalova and Jelena Jankovic 6-3, 6-2.

However, Indian tennis veteran Paes had a forgettable outing.He and his experienced men’s doubles partner Radek Stepanek lost to Spain’s Marcel Granollers and Marc Lopez 2-6 6-4 1-6 in the third round. The 41-year-old teamed up with Zimbabwe veteran Cara Black in the mixed doubles.

The third seeds failed to get going against the American-Mexican partnership of Abigail Spears and Santiago Gonzalez, losing the quarterfinal 4-6 6-4 8-10 in the Super Tie-Break. (PTI)