The Seattle Mariners smacked four homers while routing the Athletics in the opener of a three-game series, leaving Athletics top prospect Gage Jump with quite a challenge on Tuesday night.

The promising left-hander will make his big-league debut when the Athletics try to even the series with Seattle at West Sacramento, Calif.

Jump was recalled from Triple-A Las Vegas on Tuesday and the club pushed back Luis Severino’s start to Wednesday to slot in the 23-year-old.

Jump is the Athletics’ No. 3 prospect, according to MLB Pipeline. He fanned 56 batters in 38 innings over nine starts at Triple-A Las Vegas this season. He has walked 20 and posted an 0-2 record and a 4.50 ERA.

A second-round draft pick out of LSU in 2024, Jump is the No. 41 overall prospect in baseball. The A’s recalled him when they placed right-hander Aaron Civale (shoulder) on the 15-day injured list.

The Mariners will look to solve the rookie one night after slugging four home runs for the fourth time this season in a 9-2 rout of the first-place Athletics. Seattle moved to within 1 1/2 games of the American League West leaders.

Seattle took control with a six-run third inning that included two-run homers by both Luke Raley and Dominic Canzone.

The Athletics failed to turn a possible inning-ending double play on a ball hit by Josh Naylor that allowed the first run to score and kept the inning alive. Seattle took advantage in a manner that impressed manager Dan Wilson.

“Just to see that big inning kinda explode there felt great,” Wilson said. “Hopefully there’s more to come.”

Randy Arozarena went 3-for-5 with a homer and three RBIs. J.P. Crawford belted a solo shot as Seattle halted a two-game skid.

“It was a great way to start the series,” Wilson said. “Offensively, getting that big inning with two outs and putting together some really good at-bats and getting big blows by Rales and Dom, those were huge.”

Shea Langeliers homered for the Athletics, who have dropped three of their past four games.

Nick Kurtz will look to break Mark McGwire’s franchise-record, single-season streak of reaching base in 48 consecutive games on Tuesday. Kurtz tied the mark that McGwire set in 1996 by going 0-for-3 with a walk on Monday.

McGwire also holds the franchise’s overall mark of reaching in 62 straight contests. He started the streak by reaching in his final 14 games of the 1995 season.

Athletics manager Mark Kotsay looked at Seattle’s big third inning as a missed opportunity.

“Obviously, we didn’t turn a double play in the third inning, or the result could have been different,” Kotsay said.

Athletics right-hander Aaron Civale gave up three homers for the second straight start and is bothered by a shoulder ailment that could send him to the injured list.

“We’re going to get some tests done (Tuesday) morning on Aaron. (He’s) most likely headed to the IL,” Kotsay said.

The A’s had a better development Monday afternoon when standout shortstop Jacob Wilson (shoulder) took some swings with the bat.

“It’s a good sign, good progress since he was diagnosed with the injury,” Kotsay said. “He hit with the ball placed on a tee. He did well.”

Jacob Wilson dislocated his left shoulder while diving for a grounder against the Baltimore Orioles on May 10. He went on the 10-day injured list effective May 11.

The Mariners turn to right-hander Emerson Hancock (3-2, 3.07), who received a no-decision in a 6-4 loss to the Athletics on April 20 in Seattle. He gave up three runs and seven hits over five innings.

Hancock has three no-decisions and a 4.41 ERA in three career starts against the A’s. Tyler Soderstrom (3-for-8), Carlos Cortes (2-for-2), Brent Rooker (2-for-4), Langeliers (2-for-7) and Kurtz (1-for-4) have homered against Hancock, who turns 27 on Sunday

Last Wednesday, Hancock allowed two runs and five hits over five innings in a no-decision against the Chicago White Sox. Seattle won 5-4.

–Field Level Media