BOSTON (AP) — Danny Jansen hit a two-run homer, Travis Shaw had a solo shot and the Toronto Blue Jays held off the Boston Red Sox 8-7 in the opener of a doubleheader Friday.The Blue Jays, pushing for a playoff spot, have won three straight and seven of nine. Shaw went 3 for 4 with a double off the top of right field wall and single, Rowdy Tellez had two singles with a sacrifice fly and Randal Grichuk added a two-run single.Yairo Muñoz went 3 for 3 with hit a two-run homer and RBI double for the Red Sox. They have lost five in a row, nine of 12 and fell a season-high 15 games under .500 for the first time since 2014.The Blue Jays had built an 8-4 edge before Boston rallied with three runs in the sixth.A.J. Cole (2-0) pitched an inning of scoreless relief and Anthony Bass got three outs in the seventh and final inning for his fifth save. Zack Godley (0-4) was the loser.BRAVES 7, NATIONALS 1, 1st gameATLANTA (AP) — Ronald Acuña Jr. homered twice, Dansby Swanson added a two-run shot and Atlanta beat struggling Washington in the first game of a doubleheader.The defending World Series champion Nationals have lost seven consecutive games. The NL East-leading Braves have won five in a row.Nationals fielder Juan Soto was scratched less than an hour before the game because of a sore left elbow.Darren O’Day (3-0) pitched a scoreless fifth. Austin Voth (0-5) was the loser.TWINS 2, TIGERS 0, 1st gameMINNEAPOLIS (AP) — Jorge Polanco and Josh Donaldson hit back-to-back homers to lead off the first inning, and Randy Dobnak bounced back with five scoreless innings to help Minnesota beat Detroit in the first game of a doubleheader.Dobnak (6-2) gave up four hits, a walk and struck out four batters in his second straight start against the Tigers. He surrendered a season-high six runs and 12 hits in 4 1/3 innings at Detroit in his last outing.Taylor Rogers worked the seventh and final inning for his eighth save in 10 chances.Detroit starter Matt Boyd (1-5) allowed consecutive leadoff homers for the third time in less than a month. He also gave up back-to-back home runs to the Chicago White Sox to start games on Aug. 12 and 17.(backslash)REDS 4, PIRATES 2, 1st gamePITTSBURGH (AP) — Luis Castillo pitched six strong innings to pick up his first victory in nearly a year and Cincinnati beat Pittsburgh in the first game of a doubleheader on Friday.Castillo (1-5) struck out eight and walked two to earn his first win since Sept. 13, 2019. A 15-game winner and an All-Star last season, he had dropped seven straight decisions. Nick Castellanos hit his 11th home run for the Reds, a solo shot off Steven Brault (0-2).