The Brewers announced a flurry of roster moves this morning, highlighted by the club selecting the contract of left-hander Jared Koenig. The club also called up outfielder Joey Wiemer. To make room for the duo on the active roster, right-hander JB Bukauskas was placed on the injured list while infielder Andruw Monasterio was optioned to Triple-A, while outfielder Garrett Mitchell was transferred to the 60-day IL to make room for Koenig on the 40-man roster.
Koenig, 30, is getting his second crack at the major leagues after initially making his debut with Oakland back in 2022. A 35th-round pick by the White Sox out of high school in the 2014 draft, the southpaw didn’t receive an offer from the club after being drafted and was never drafted again, instead fashioning a career for himself in independent ball after college. After several years spent in indy ball, Koenig had a strong season with the Frontier League’s Lake Erie Crushers that saw him post a 2.24 ERA in 104 1/3 innings of work with a 30.6% strikeout rate. That performance earned him the attention of the A’s, who signed him to a minor league deal.
The left-hander continued to find success upon being assigned to the Double-A level in 2021, leading to him eventually contributing to the big league club in 2022. Koenig’s long road to the major leagues ended with him pitching 39 1/3 innings for the A’s that saw him post a lackluster 5.72 ERA with a 4.84 FIP, striking out just 12.4% of batters faced. Koenig returned to the minors last year, this time in the Padres organization, before signing on with the Brewers prior to the 2024 campaign.
In Milwaukee, Koenig figures to join the bullpen in a short relief capacity after transitioning out of his previous long relief/starting role last season. He’s looked good in four appearances with Triple-A Nashville, posting a 1.93 ERA while punching out 50% of the batters he’s faced. He’ll try to carry that success over to the big league Brewers, where he’ll join Bryan Hudson and Hoby Milner among the left-handed options at manager Pat Murphy’s disposal.
Coming up from Triple-A alongside Koenig is Wiemer, who appeared in 132 games for the Brewers as a rookie last season. The 25-year-old offers stellar outfield defense (his +8 Outs Above Average placed him in the 93rd percentile of major leaguers last year, per Statcast) and is capable of handling all three positions on the grass, but struggled to a .204/.283/.362 slash line in 410 trips to the plate last year.
While that offense certain left something to be desired, Wiemer was actually well above average against southpaws in 2023, slashing a much stronger .267/.298/.517 with seven home runs and eight doubles in just 121 trips to the plate against lefties. Wiemer figures to provide a right-handed complement to the club’s current center field duo of Blake Perkins and Sal Frelick, while also potentially freeing up Frelick for occasional reps at third base where the club is currently utilizing a combination of Joey Ortiz and Oliver Dunn.
Making room for Wiemer on the active roster is Monasterio, who has struggled in limited playing time this season. He’s gone hitless in nine plate appearances this season despite drawing two walks against just one strikeout, and will now head to Triple-A where he can get more regular playing time. Monasterio made his big league debut with the club last season, slashing .259/.330/.348 in 92 games while splitting time between second and third base.
Meanwhile, Koenig takes the roster spot of Bukauskas, who is headed to the injured list due to a lat strain. Curt Hogg of the Milwaukee Journal Sentinel reports that Bukauskas is set to undergo imagining on his shoulder before the Brewers determine a timeline for his return due to the right-hander’s lengthy history of lat injuries. Bukauskas has looked good through six appearances with the Brewers this year, striking out 27.3% of batters faced with just one earned run allowed on a solo homer to this point. Mitchell’s placement on the 60-day IL, meanwhile, hardly comes as a shock given the club does not expect him to return until June as he rehabs from a hand fracture.
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