All about US Open's new breed of giants, Serena's unstoppable feat

Serena Williams has been unstoppable in New York but faces her toughest test yet when she battles Karolina Pliskova on Tuesday in the quarter-finals at the U.S. Open.

Golf: Woods, Mickelson, DeChambeau added to U.S. Ryder Cup team

Tiger Woods' and Phil Mickelson's mediocre Ryder Cup records did not stop United States captain Jim Furyk from adding the duo to his team on Tuesday for this month's showdown with Europe. Woods has played on only one victorious Ryder Cup team (1999) in seven appearances, an astonishing number for one of the game's all-time greats.

We'll see you in Paris!🇺🇸🇺🇸@PhilMickelson @b_dechambeau @TigerWoods pic.twitter.com/SscUZHs0ah

— Ryder Cup USA (@RyderCupUSA) September 4, 2018

Exclusive: Wimbledon, Australian Open considering final-set tiebreaks

Wimbledon and the Australian Open are considering introducing final-set tiebreaks in 2019. The issue hit the headlines after the six-hour, 36-minute semi-final between Kevin Anderson and John Isner at Wimbledon this year, which Anderson won 26-24 in the final set.

Nike shares dip as Kaepernick ad spurs boycott

Shares of Nike Inc fell nearly 2 percent on Tuesday as calls for a boycott of the sportswear giant gained traction on social media after it chose Colin Kaepernick as a face for adverts marking the 30th anniversary of its "Just Do It" slogan. Former San Francisco quarterback Kaepernick, the first NFL player to kneel during the national anthem as a protest against racism, posted a black-and-white close-up of himself on social media on Monday featuring the Nike logo and "Just do it" along with the quote, "Believe in something. Even if it means sacrificing everything."

Serena set for Pliskova challenge in New York

Serena Williams has been unstoppable in New York but faces her toughest test yet when she battles Karolina Pliskova on Tuesday in the quarter-finals at the U.S. Open. Top-seeded Spaniard Rafael Nadal and world number three Sloane Stephens are also looking to keep alive their hopes of successfully defending their titles in their matches against Austrian Dominic Thiem and Latvian Anastasija Sevastova.

USA Gymnastics says CEO out in a latest post-scandal shakeup

USA Gymnastics said on Tuesday its chief executive had left the sport's national governing body, as the organization tries to recover from a scandal over the sexual abuse of hundreds of female athletes by one of its team doctors. Media reports said Kerry Perry, a former media executive who took the job nine months ago, departed under pressure.

MLB roundup: Rockies claim first in NL West

Pinch-hitter Noel Cuevas delivered a two-run single in the eighth inning Monday afternoon, allowing the Colorado Rockies to survive a late rally by the San Francisco Giants and record a 9-8 victory in Denver. The Giants had scored three times in the top of the eighth inning to take an 8-7 lead in a game they had once trailed 7-2.

Del Potro beats Isner and heat to reach U.S. Open semis

Juan Martin Del Potro outslugged John Isner 6-7(5) 6-3 7-6(4) 6-2 to reach the semi-finals of the U.S. Open on Tuesday after a towering battle in a sweltering Arthur Ashe Stadium. More than just a three hour, 31-minute marathon, the quarter-final was a test of survival played in suffocating humidity so extreme that officials called a halt to junior matches on the outside courts for more than two hours.

A new breed of giants make Grand Slam success a tall order

When Milos Raonic steps out for a match, he usually expects to be the tallest player on the court. Except at the U.S. Open on Sunday, the 6-foot-5 inch Canadian found himself face-to-face -- or, more accurately, face-to-chest -- with man-mountain John Isner, who stands five inches taller.

Stephens sent packing by Sevastova in U.S. Open quarters

Defending U.S. Open champion Sloane Stephens was dumped out in the quarter-finals after losing 6-2 6-3 to Latvian 19th seed Anastasija Sevastova in sweltering conditions on Tuesday. The third-seeded American lacked the swagger she showed through the opening four rounds and wilted in the sun-baked conditions at Flushing Meadows against Sevastova, who became the first Latvian woman to reach the semi-finals of the U.S. Open.

The defending champ is out, thanks to a stubborn opponent who refused to wilt. https://t.co/ODjkGiPR7a

— David Waldstein (@DavidWaldstein) September 4, 2018

Unseeded Millman sends Federer crashing out of U.S. Open

Roger Federer failed to cope with stifling conditions at the U.S. Open on Monday and suffered a shock 3-6 7-5 7-6(7) 7-6(3) defeat to unseeded Australian John Millman in the last 16. Second seed Federer, who had not dropped a set in his first three matches, was uncharacteristically sloppy, committing 77 unforced errors and 10 double faults while landing just 49 percent of his first serves.