ARLINGTON — Marcus Siemian hit a pair of home runs and Corey Seager added two more, including the go-ahead run, as the Texas Rangers beat the Seattle Mariners 9-8 on Sunday to clinch a crucial sweep. A three-game series for first place in the AL West division.

Cuban Adolis Garcia, Dominican Leodi Taveras and rookie Evan Carter also had a blast for the Rangers, who hit a season-high six home runs, a four-year streak at Globe Life Field.

West leader Texas (85-70) won its fifth straight game and moved 2 1/2 games ahead of World Series champion Houston.

Texas, with its first winning season since 2016, earned its first win of the series and returned to first place in the division for the first time in nearly a month. They led all but one day before losing in August.

Seattle (84-71) trailed Houston by a half-game for the third and final wild-card berth.

For the Mariners, Dominican Julio Rodriguez 4-2, two runs; and Teoscar Hernandez 4-2, two runs and two RBI. Venezuela’s Eugenio Suarez went 2-for-4 with two RBIs.

For the Rangers, Garcia was 1 for 4 with a run scored and an RBI. Taveras is 3-2 with two runs scored and two RBIs.