As of June 5, 2026, the fantasy baseball waiver wire is buzzing with high-value injury returns that could reshape your roster for the stretch run. From a closer poised to resume saves to a shortstop prospect returning from a broken wrist, there's critical MLB injury report news that every manager needs to act on immediately. Here are the five biggest player signals to know right now.

Ryan Helsley (BAL) — Return From Injury

Helsley is trending toward a June return from the 15-day IL, and most importantly, his role as Baltimore's primary closer remains intact. For managers hunting saves on the fantasy baseball waiver wire, this is one of the most important pickups to monitor in the coming days.

The key action item is tracking his rehab assignment progress for an exact reinstatement timeline. Once he's back, Helsley slots directly back into the ninth inning, making him a must-add if he's somehow still available in your league.

Confidence: 85%

Jordan Lawlar (ARI) — Return From Injury

Lawlar is eligible to return this week after missing since April 3 with a broken right wrist. The Arizona shortstop prospect carries significant fantasy upside, and his potential return makes him one of the more intriguing fantasy baseball pickups on the board right now.

There is a complication to monitor: his return will create an outfield logjam in Arizona, with Gurriel also working back from injury at the same time. Managers should watch for how Arizona handles roster construction before committing a roster spot.

Confidence: 65%

Dylan Beavers (BAL) — Return From Injury

Beavers has returned to hitting in the cage after dealing with a right oblique strain and appears to be nearing game action, likely via a rehab assignment first. His expected return to Baltimore's active roster in the near term puts him on the radar as a speculative fantasy baseball waiver wire add in deeper leagues.

Oblique injuries can be tricky, so managers should wait for confirmation that he's cleared a rehab assignment before investing a roster spot. That said, the direction of this MLB player news is clearly positive and worth watching closely.

Confidence: 65%

Max Muncy (OAK) — Return From Injury

Muncy fractured his left hand in mid-April and has now progressed to a rehab assignment, which is a meaningful step forward in his recovery. His return timeline will become clearer as he accumulates Triple-A reps, giving managers a window to plan ahead.

As a power-hitting corner infielder, Muncy has obvious fantasy appeal once healthy. He's worth stashing on your bench or targeting off the fantasy baseball waiver wire in leagues where he's been dropped, though patience is required given the hand fracture history.

Confidence: 65%

A.J. Puk (ARI) — Return From Injury

The Arizona reliever is advancing through his rehab assignment and is on track to return around mid-June. According to the latest MLB injury report, Puk has completed roughly 7–8 rehab outings and is throwing well in minor-league action, which is an encouraging sign for his readiness.

In save-situation leagues or formats that reward holds and strikeouts from relievers, Puk's mid-June return makes him a forward-looking add. Monitor Arizona's bullpen usage to gauge where he'll slot upon reinstatement.

Confidence: 65%

Get Real-Time Fantasy Intelligence

Staying ahead of the fantasy baseball waiver wire means acting on injury news before your league opponents do. These five players represent real roster-building opportunities right now — but the window moves fast. Get real-time signals and AI-powered lineup advice at PlayCaller — free 7-day trial at playcallerapp.com