TENNIS-US OPEN

Serena tries for 24th Grand Slam title

NEW YORK (AP) — Serena Williams tries to win her seventh U.S. Open championship and 24th Grand Slam singles title when she faces 20th-seeded Naomi Osaka in the women's final Saturday.

If Williams gets win No. 24, it would tie Margaret Court for the most major championships in tennis history; as it is, Williams owns the professional-era record of 23, because Court won some of hers against amateur competition.

Osaka is making her debut in a major final at age 20, and says that Williams, who turns 37 this month, is her idol. Another connection between the two that could play a role Saturday: Osaka is coached by Sascha Bajin, who used to be Williams' hitting partner.

Osaka is the first woman from Japan to reach a Grand Slam title match. She was born in Japan, then moved to New York when she was 3 and is now based in Florida.

MLB-SCHEDLE

Cubs and Nationals have a doubleheader

UNDATED (AP) — The Cubs and the Nationals have a doubleheader in Washington, after Friday night's game was postponed following two rain delays totaling more than four hours. It was scoreless in the top of the second inning when it was called.

The rain spoiled the return of Washington pitcher Joe Ross, who was making his first major league start since undergoing Tommy John surgery in July of 2017. The 25-year-old Ross allowed a hit, hit a batter and had a strikeout.

Jon Lester tossed a scoreless first inning for Chicago, giving up one hit.

Elsewhere in the majors:

— The Houston Astros try to extend their six-game winning streak when they continue their series in Boston. The Astros are 13-4 in their last 17 road games. Right-hander Charlie Morton starts for Houston against lefty Eduardo Rodriguez. Each is 0-1 in three career starts against the other team.

— Oakland continues its series against visiting Texas having won four of its last five games and seven of eight against the Rangers. The A's are 3 ½ games behind first-place Houston in the AL West and 3 ½ back of the New York Yankees for the top AL wild card. Right-hander Edwin Jackson starts against Texas lefty

— David Hess is set to start for the Orioles at Tampa Bay, a day after he was hit in the eye while playing catch with a football at Tropicana Field. It's a normal sight across the majors to see pitchers doing running work involving football passes before batting practice. A specialist examined Hess' left eye, and he returned to the Baltimore dugout last night — wearing an LSU football helmet.

— Gio Gonzalez is set to make his first start with the Brewers in Milwaukee against the Giants. The left-hander was acquired from the Nationals a week ago. He had lost three of his final four starts with Washington while posting an 8.71 ERA, but Milwaukee is hoping he can help the team's postseason push.

— Clay Buchholz's resurgent season keeps getting better, a trend Arizona hopes he extends against Atlanta. The 34-year-old right-hander is 7-2 with a 2.05 ERA, including 2-0 with an 0.64 ERA in his past four starts. The Diamondbacks are trying to close ground on the Rockies and Dodgers in the NL West, a tough task with the NL East-leading Braves in town. Atlanta is set to pitch right-hander Julio Teheran.

NBA-CELTICS PLAYER ARRESTED

Police: Celtics' Jabari Bird involved in domestic incident

BOSTON (AP) — Boston Celtics guard Jabari Bird is facing charges after what authorities are calling a domestic incident.

The Boston Police Department said in a statement Saturday that Bird was being guarded by police at a hospital and was undergoing an evaluation after the incident Friday in the city's Brighton neighborhood.

Police said the victim involved was brought to a different hospital to be treated for injuries sustained in the incident.

Police said complaints would be sought against Bird for assault and battery, strangulation and kidnapping. No other details were immediately released.

The Celtics said in statement that the team was aware of the incident and was "taking it very seriously."

A 2017 second-round draft pick from California, Bird spent most of last season with the Maine Red Claws in the G-League.