KANSAS CITY, Mo. — Rookie Jakob Junis pitched eight sharp innings and the Kansas City Royals beat the Seattle Mariners 9-1 to split their doubleheader Sunday.
Nelson Cruz homered twice and drove in four runs as the Mariners held off the Royals 8-7 in the first game.
Whit Merrifield homered in both games for the Royals.
Junis (4-2), who was added to Kansas City’s roster as the extra 26th man for the twinbill, allowed one run. He retired his final 19 batters after giving up an RBI double to Danny Espinosa in the second inning.
Junis walked none and struck out a career-high seven.
Melky Cabrera hit a three-run homer off Erasmo Ramirez (4-4) during a four-run third inning. It was Cabrera’s first home run since the Royals acquired him in a July 30 trade with the Chicago White Sox. Cabrera also had an RBI double.
Eric Hosmer homered and drove in three runs for the Royals. Seattle pitchers have allowed an AL-high 172 home runs.
Lorenzo Cain got six hits in the doubleheader, scored three runs, drove two and stole a base for the Royals.
Cruz, Danny Valencia and Kyle Seager homered in the first two innings as the Mariners took a 7-0 lead off Danny Duffy (7-7) in the opener.
Cruz, who leads the AL with 84 RBIs, hit a three-run drive in a four-run second. He hit his 24th home run in the seventh off Scott Alexander, a shot estimated at 465 feet to center. It was Cruz’s 22nd multihomer game, his first this season.
Marco Gonzalez, who was making his Mariners’ debut since being acquired in a July 21 with St. Louis, failed to make it through the fifth. James Pazos (3-3) won in relief and Edwin Diaz posted his 23rd save in 27 opportunities.
Segura led off the game with a walk and scored on Valencia’s 13th home run. Seager homered with two outs in the first.
Merrifield hit a two-run homer in the third. Mike Moustakas hit his 31st homer, a two-run drive, in the eighth.
MARINERS GET ALONSO
The Athletics traded All-Star 1B Yoder Alonso to the Mariners for minor league OF Boog Powell. The left-handed hitting Alonso will be used primarily in a platoon with 1B Valencia. Alonso has 22 home runs and 49 RBIs.
The doubleheader was caused by Saturday’s rainout, the first for the Mariners since April 30, 2014. They had played 572 consecutive scheduled games, which was the longest streak in the majors, before the washout.
Mariners: RHP David Phelps left in seventh with elbow discomfort after throwing seven pitches. … RHP Felix Hernandez, who went on the disabled list Saturday with biceps tendinitis, returned to Seattle and will be examined by team doctors Monday with a MRI scheduled.
Royals: C Salvador Perez went on the 10-day disabled list Sunday with a right intercostal strain. The club recalled C Cameron Gallagher from Triple-A Omaha, who made his big league debut. He got his first hit and scored in the second.
Mariners: Off Monday and will start LHP Ariel Miranda (7-5, 4.41) Tuesday at Oakland.
Royals: RHP Ian Kennedy (4-7, 4.60) will start the opener of a four-game series Monday against the Cardinals with the first two games in Kauffman Stadium. RHP Carlos Martinez (7-9, 3.59) will start for St. Louis.