Mariners: 3 Options to Improve Center Field Defense

ST PETERSBURG, FLORIDA - JUNE 11: Kevin Kiermaier #39 of the Tampa Bay Rays catches a fly ball during the third inning against the Baltimore Orioles at Tropicana Field on June 11, 2021 in St Petersburg, Florida. (Photo by Douglas P. DeFelice/Getty Images)
ST PETERSBURG, FLORIDA - JUNE 11: Kevin Kiermaier #39 of the Tampa Bay Rays catches a fly ball during the third inning against the Baltimore Orioles at Tropicana Field on June 11, 2021 in St Petersburg, Florida. (Photo by Douglas P. DeFelice/Getty Images)
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In 2021, the Seattle Mariners had the worst Defensive Rating (DEF) in center field among all MLB teams, with a DEF of -8.7 (according to Fangraphs). A major contributing factor to that rating was rookie Jarred Kelenic, whose DEF of -6.4 in center field was the worst among all MLB center fielders.

Kelenic is expected to move to left field in 2022 to help soften his transition to the major leagues, and while Kyle Lewis made some highlight reel plays in center in 2020, he’s not expected to make significant defensive contributions any time in the near future.

The Seattle Mariners need to upgrade on offense, but making defensive improvements shouldn’t be overlooked.

The primary narrative behind the Mariners’ offseason so far has centered around improving the American League’s worst offense (ranked by batting average). Prioritizing the improvement of the offense is undoubtedly the right move, but Seattle would also be wise to bring in new acquisitions who can carry solid defense along with some added juice to the batting order.

In this article, we’ll take a look at a few options around the league that could help solidify the Mariners’ center field spot, one of the most import defensive positions on the diamond.

Oct 11, 2021; Boston, Massachusetts, USA; Tampa Bay Rays center fielder Kevin Kiermaier (39) makes a catch for an out against the Boston Red Sox during the second inning during game four of the 2021 ALDS at Fenway Park. Mandatory Credit: David Butler II-USA TODAY Sports
Oct 11, 2021; Boston, Massachusetts, USA; Tampa Bay Rays center fielder Kevin Kiermaier (39) makes a catch for an out against the Boston Red Sox during the second inning during game four of the 2021 ALDS at Fenway Park. Mandatory Credit: David Butler II-USA TODAY Sports /

The Tampa Bay Rays, a notoriously low-budget team, could be motivated to trade their most expensive player: center fielder Kevin Kiermaier.

Yes, Kevin Kiermaier is the highest-paid player on the Rays, but his contract is still quite reasonable: he will make $12 million in 2022, and has a club option for $13 million in 2023 before entering free agency in 2024.

Kiermaier, a three-time Gold Glove winner in center field (2015, 2016, 2020), has long been known as a fantastic defensive center fielder. Words can only tell so much of the story, so I encourage you to check out some of his best defensive highlights in the video below, showcasing his speed, athleticism, coordination, and stellar throwing arm:

While defense has always been Kevin Kiermaier’s calling card (8.9 DEF in 2021), his bat took a turn for the better last season, posting a slash line of .259/.328/.388. A left-handed hitter, Kiermaier actually had extremely even splits against right-handers and left-handers, so he is a player that could be comfortably inserted into the lineup on a regular basis.

If Kiermaier was able to produce quality at-bats in the 6-9 range of the Mariners’ batting order and play Gold Glove-caliber defense in center, all while playing every day, I’d opine that he would be well worth $12 million in 2022.

May 8, 2021; New York City, New York, USA; New York Mets center fielder Kevin Pillar (11) makes a sliding catch against the Arizona Diamondbacks in the fifth inning at Citi Field. Mandatory Credit: Dennis Schneidler-USA TODAY Sports
May 8, 2021; New York City, New York, USA; New York Mets center fielder Kevin Pillar (11) makes a sliding catch against the Arizona Diamondbacks in the fifth inning at Citi Field. Mandatory Credit: Dennis Schneidler-USA TODAY Sports /

Kevin Pillar could bring veteran leadership, postseason experience, and above-average center field defense to a young Mariners team in 2022.

The New York Mets decided not to pick up 33-year-old center fielder Kevin Pillar‘s $6.4 million team option this offseason, while Pillar opted against accepting a $2.9 million player option, making him a free agent heading into the 2022 season.

Pillar has shined defensively throughout his career, posting an outstanding 14.4 DEF in 2015 while with the Toronto Blue Jays, and exhibited above-average defense with the Mets in 2021 with a 1.1 DEF in over 400 innings in center field.

Last season, Pillar posted an underwhelming .692 OPS, but if his primary slot in the Mariners’ batting order was in the 7-9 range, his veteran presence and defensive prowess would make him an obvious improvement over the likes of Dylan Moore or Jake Fraley as an outfield regular.

Oct 27, 2020; Arlington, Texas, USA; Los Angeles Dodgers center fielder Cody Bellinger (35) catches a fly ball during the eighth inning against the Tampa Bay Rays during game six of the 2020 World Series at Globe Life Field. Mandatory Credit: Tim Heitman-USA TODAY Sports
Oct 27, 2020; Arlington, Texas, USA; Los Angeles Dodgers center fielder Cody Bellinger (35) catches a fly ball during the eighth inning against the Tampa Bay Rays during game six of the 2020 World Series at Globe Life Field. Mandatory Credit: Tim Heitman-USA TODAY Sports /

If the Los Angeles Dodgers are ready to move on from Cody Bellinger, the Mariners could be at the top of the list of interested buyers.

Cody Bellinger was the N.L. Rookie of the Year in 2017, won MVP and Gold Glove honors in 2019, and helped the Dodgers win the World Series in 2020. However, after hitting .165 and playing in barely over 50% of the Dodgers’ games last season, it appears he could be on his way out of Los Angeles.

With ultra-utility man Chris Taylor re-signing in Los Angeles this offseason, star outfielder Mookie Betts, and first baseman Max Muncy (a position that Bellinger can also play at a high level) under contract for the next several seasons, L.A. would predictably be just fine in center field and first base without Bellinger’s services if they were to choose to deal him.

Bellinger’s massive regression last season is certainly cause for concern, but it could be the only circumstance that would ever make him available on the trade market. The Mariners, a team that can struggle to be successful in adding top talent through free agency, should be highly interested in any opportunity to bring in a potential star via trade (especially in a relatively “buy low” situation).

Since Bellinger can play both center field and first base, acquiring him could actually give Seattle major flexibility in their lineup; on days where Bellinger plays first, Ty France would have the opportunity to DH or get in work at third base, while young talents Taylor Trammell and (eventually) Julio Rodriguez could find some much-needed time in the outfield.

Starved for outfield depth in their minor league system, the Dodgers would surely be open to acquiring Seattle’s #6 prospect, outfielder Zach DeLoach, as a foundational piece in a potential deal. The Mariners also have massive depth in the pitching department, which Los Angeles can never seem to get enough of (both in their starting rotation and bullpen).

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