Mariners Acquire Adam Frazier for Kerr, Rosier

The Seattle Mariners have officially made their first move of the 2021-2022 off-season, acquiring INF/OF Adam Frazier from the San Diego Padres.

As earlier reported by Jeff Passan, and since confirmed by the club, the Mariners have their new second baseman. Or left fielder. Or utility man. Regardless of his position, Adam Frazier is now officially a Seattle Mariner. The news shouldn’t come as a shock to diehards, as the club’s affinity for Frazier goes back to last winter, and you can see why.

Frazier is an above-average defender at second base, who can actually hold his own at shortstop and in the outfield. He is a high contact bat who draws walks and won’t strike out often. There have been flashes of power recently, but not enough to count it as a part of his game. He uses the whole field and his approach is more of a slasher than anything else.

A career .281/.344/.412 hitter, Frazier got off to a fantastic start with the Pirates but came back down to earth after his trade to the Padres. He finished the season slashing .305/.368/.411 with 36 doubles, five triples, and five home runs, good for a 114 wRC+. By comparison, the Mariners’ second baseman in 2021 posted a 78 wRC+. So, if Frazier can just repeat his 2021 season, he represents a 36% increase in offensive productivity. Heck, even if he posts his career average wRC+ (103), he’s still a 25% improvement at the position.

Frazier is set to earn roughly $7.5 million in arbitration and will be a free agent after the 2022 season. To acquire the above-average bat and super-utility man Frazier, the Mariners sent Ray Kerr and Corey Rosier to the Padres.

Kerr, 27, was recently added to the 40-man roster and as a left-handed reliever who touches 100 mph with a decent slider in his back pocket, he should be ready to help the big league club at some point in 2021.

Rosier was the team’s 12th-round pick in 2021 and had garnered a lot of buzz for his enticing toolset and his fast start in Low-A Modesto. There is a good power/speed combo and he could rise pretty quickly through the minors. Ultimately, his ceiling is likely that of a fourth outfielder, but there may be enough tools for Rosier to carve out a nice, long career for himself.

Overall, the Mariners acquired a major upgrade to their major league roster at the expense of some of their minor league depth, making this a solid first move in the Mariners off-season. The Padres did pretty well for themselves with the return, but Mariners fans should be happy that the 2022 club just got significantly better.

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