Zebby Matthews is the Twins starter fantasy managers should be adding right now

What happened

Zebby Matthews, the Minnesota Twins right-hander, is reportedly the most compelling starting pitcher available on fantasy baseball waiver wires, per Yahoo Sports. Rostered in just 39% of leagues, Matthews has posted a 17:2 K:BB ratio across his three starts and has logged at least six innings in each of them — a combination of strikeout upside and walk suppression that Yahoo Sports argues warrants pushing him past the 50% ownership threshold.

Why it matters

The fantasy waiver wire conversation around starting pitchers tends to follow a familiar arc: a name bursts onto the radar, gets rostered in the majority of leagues within a week or two, and the window closes. Per Yahoo Sports, most of the recent wave of exciting waiver wire starters have already crossed that majority-rostered line. Matthews, the report suggests, is next in line to graduate — and at 39% ownership, the window is still open.

What makes the case compelling is the specific shape of his production. A 17:2 K:BB ratio is not a number that arrives by accident. It reflects two things working in concert: the ability to miss bats and the discipline to avoid free passes. Yahoo Sports notes that Matthews is known for racking up whiffs and limiting walks, and the three-start stretch of six-plus innings each time out suggests he has been doing both while also eating enough innings to matter in formats that reward workload. A starter who strikes out hitters, doesn't walk them, and goes deep into games is, to put it plainly, the thing fantasy managers are always looking for on the wire.

The numbers

The figures that anchor this section come directly from Yahoo Sports: a 17:2 K:BB ratio and at least six innings pitched in each of his three starts. Those are the numbers on the table. The K:BB ratio in particular is the kind of figure that tends to hold up — walk rate is among the more stable early-season indicators, and a pitcher who has issued just two walks across three starts is demonstrating something real, not just riding a strand rate.

The Minnesota Twins as a club sit at 77-85 (.475), third in the AL Central and 8 games back in the division. Their Wild Card position ranks 7th, 7.0 games relative to the cut line, and they are eliminated from both the division race and the Wild Card race. That organizational context matters for how you think about Matthews: a team playing out the string has every reason to let a young starter work through his outings rather than pull him at the first sign of trouble, which is a quiet but real tailwind for a pitcher trying to build a fantasy-relevant workload.

Where the club stands

Minnesota enters the weekend on a one-game winning streak, sitting third in the AL Central at 77-85. With the division and Wild Card both off the board, the Twins are in the part of the season where the standings matter less than what the roster is learning about itself — which, for a 39%-rostered starting pitcher, is not the worst environment to be pitching in.

The upcoming schedule offers a concrete data point for fantasy managers weighing the add. Matthews is the probable starter for Sunday, May 31, against the Pittsburgh Pirates at PNC Park, where he is lined up to face Braxton Ashcraft. Friday's game sends Taj Bradley to the mound against Jared Jones, and Saturday features Bailey Ober against Mitch Keller. Matthews gets the series finale, which means fantasy managers who add him now have a clear next look coming on Sunday.

Is Matthews pitching this weekend?

Yes — Matthews is the probable starter for Sunday, May 31, at Pittsburgh. That start against Braxton Ashcraft gives fantasy managers an immediate return on the waiver wire add, assuming the probable assignment holds.

What we don't know yet

Yahoo Sports frames Matthews as a strong add but does not provide a full season ERA, WHIP, or Statcast profile. The 17:2 K:BB ratio and the six-inning floor across three starts are the figures on record; everything else about his line is not in the material. The report also does not specify the opposition he has faced in those three starts, which is the natural next question when evaluating whether the ratios are likely to persist.

There is also the broader uncertainty that comes with any pitcher at this stage of a sample. Three starts is enough to take seriously — especially when the walk numbers are this clean — but it is not enough to declare anything settled. Yahoo Sports is careful to frame this as a waiver wire recommendation, not a guarantee, and that framing is worth preserving.

What to watch

The Sunday start against Pittsburgh is the immediate thing to monitor. A fourth consecutive start of six-plus innings with the K:BB ratio intact would make the case for Matthews considerably harder to ignore, and would likely push his ownership well past the 50% line Yahoo Sports is already arguing he deserves to cross.

Beyond the individual start, the broader question is whether the walk suppression holds. Two walks across three starts is a small number, and small numbers can move. If Matthews continues to limit free passes while generating strikeouts, the fantasy case becomes self-reinforcing. If the walk rate creeps up, the conversation changes. Sunday at PNC Park is the next chapter.

Yahoo Sports also flags Cade Cavalli of the Washington Nationals — rostered in 33% of leagues — as another arm worth watching, noting that the right-hander had been prone to walks earlier in his career before reportedly logging a 1.8 BB/9 rate following a stretch beginning April 18. For managers who miss the window on Matthews, Cavalli is the name the report puts next on the list.

For now, though, Matthews is the lead. A 17:2 K:BB ratio, six innings in each of three starts, 39% rostered, and a Sunday probable against Pittsburgh: the waiver wire arithmetic, per Yahoo Sports, is not especially complicated.