The Latest: Kerber wins 1st set of US Open final vs Pliskova

Angelique Kerber, of Germany, reaches to returns a shot to Karolina Pliskova, of the Czech Republic, during the women's singles final of the U.S. Open tennis tournament, Saturday, Sept. 10, 2016, in New York. (AP Photo/Seth Wenig) (The Associated Press)

Karolina Pliskova, of the Czech Republic, left, and Angelique Kerber, of Germany, pose for a photo before playing in the women's singles final of the U.S. Open tennis tournament, Saturday, Sept. 10, 2016, in New York. (AP Photo/Darron Cummings) (The Associated Press)

Jamie Murray, of the United Kingdom, left, and Bruno Soares, of Brazil, pose for a photo with the championship trophy after beating Pablo Carreno Busta, of Spain, and Guillermo Garcia-Lopez, of Spain, to win the men's doubles final of the U.S. Open tennis tournament, Saturday, Sept. 10, 2016, in New York. (AP Photo/Julie Jacobson) (The Associated Press)

The Latest on U.S. Open (all times local):

5:05 p.m.

Angelique Kerber is one set from her second major title of 2016.

Kerber won the first set of Saturday's U.S. Open final 6-3 over Karolina Pliskova. The big-serving Pliskova was broken just once in her last two matches combined, but Kerber got breaks in the first and last games of the set.

Kerber is 44-0 this season when she wins the first set.

Pliskova got in just 53 percent of her first serves, and Kerber was all over her second serves, winning 71 percent of those points. Pliskova made 17 unforced errors to three for Kerber.

Kerber, who is taking over the No. 1 ranking for the first time, is in her third major final of the year, while this is the first of Pliskova's career. Kerber won the Australian Open title and was the runner-up at Wimbledon.

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4:20 p.m.

Angelique Kerber and Karolina Pliskova are playing for the U.S. Open championship.

Kerber, who is taking over the No. 1 ranking for the first time, is in her third major final of the year, while this is the first of Pliskova's career. Kerber won the Australian Open title and was the runner-up at Wimbledon. Pliskova had never even made a Grand Slam round of 16 before this tournament, but she upset Serena Williams in the semifinals to advance to Saturday's championship match.

Pliskova beat Kerber in the final at Cincinnati nearly three weeks ago for a breakthrough title for the 24-year-old Czech, and she's been riding that momentum ever since. Kerber was coming off a tiring run to the Olympic gold-medal match then and dealing with the pressure of her first chance to ascend to the top of the rankings.

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2:05 p.m.

Jamie Murray of Britain and Bruno Soares of Brazil won the U.S. Open doubles championship Saturday for their second Grand Slam title this year, beating Spaniards Pablo Carreno Busta and Guillermo Garcia-Lopez 6-2, 6-3.

The No. 4-seeded Murray and Soares, who won the Australian Open in January, are the first winners of multiple major men's doubles titles in a season since Bob and Mike Bryan won three in 2013.

They dropped only one service game and won 71 percent of first-serve points against their unseeded opponents. The duo only teamed up late last year.

"It's a great feeling," Murray said in his post-match interview when reminded he's accomplished something his more famous younger brother, Andy, has not by winning two major titles this year. "I'm starting to move out of the shadows."

Murray and Soares reached the final after taking out the top-seeded team, defending champions Pierre-Hugues Herbert and Nicolas Mahut.