Working the Waiver Wire: March 30th

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  • By Nathan Baker

    As much as I’d love to make this an eight paragraph gloat sesh about LouBob, or whine about the return of *redacted* relief pitcher, we do have our first edition of Working the Waiver Wire on this Monday.

    While it’s natural to gravitate towards the players with the hottest starts, a la Joey Weimer, I’ve picked out four names who could give your fantasy squad more sustainable value, including a former top prospect ready to break out, a heavily undervalued rookie and a pair of relief pitchers ready to assume the closers role in Missouri.

    *Note that all listed roster %’s are from Yahoo, at the time of the writing of this article. Almost all of our waiver wire recommendations are widely available across all major platforms, however.*

    Owen Caissie – OF – Marlins – 9% Rostered

    The long awaited Trade of young right hander Edward Cabrera netted an everyday right fielder for the fish, and it’s so happens that this right fielder was a major league ready, consensus top 100 prospect. Owen Caissie was raved about in the Cubs organization for his incredible power, but also his strides in swing decisions, and how his athleticism could play on the bases and in the field.

    Despite some strikeout concerns, Caissie is believed to have made enormous strides with his hit tool as well, and with his power, there is true 40 home run potential if he ever manages to control the punch outs. Thus far, the positive reports appear to be true, with a pair of barrels in his first 10 ten plate appearances in 2026, and even though the Marlins schedule will toughen after their upcoming series against the White Sox, Caissie has far too much upside to pass up on in any format.

    Lucas Erceg – RP – Royals – 16% Rostered

    The Royals endured some red flags in spring training with produced velocity at the back end of their bullpen, and thus far in the regular season, they are one for two on those red flags being false alarms. Closer Carlos Estevez experienced a 6 mph drop in his average fastball velocity from last season to 2026 spring training, and those concerns have lingered with the 33 year old surrendering six runs in his first appearance of the season while only recording one out. His velocity was slightly better, but still only averaged 91.2 on the fastball-1mph up from spring training, but 5mph down from last season.

    For a pitcher who throws his fastball over half the time, 91 mph just won’t cut it, and it won’t be long before the Royals realize this and remove him from his role.

    Lucas Erceg is also a >50% fastball guy (albeit with two different fastballs) and also endured a drop in velocity in spring training, but his velocity from his first two outings is way up from the spring, and more than 1mph up from last season. With Erceg back to pumping 99, the Royals promptly gave him yesterday’s save chance, which he converted with a strikeout, and it’s fair to expect Erceg to continue in the role for a team that should yield plenty of opportunities.

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    March 30, 2026, 6:01 am