Fantasy managers need to stay sharp on the fantasy baseball waiver wire heading into the week of June 13, 2026, with a wave of Baltimore and Arizona roster news creating both risks and opportunities. From a high-severity IL placement to a cluster of return-from-injury timelines, the MLB injury report is packed with signals that demand immediate attention. Here's what you need to know before you set your lineups.
Chris Bassitt (BAL) — Injury Update
Bassitt was pulled from his last start Thursday against the Red Sox due to lower-back tightness and was held back in Baltimore for examination. Despite the alarming optics of a veteran starter missing his scheduled outing, early reporting suggests he is not expected to miss a turn in the rotation barring any setbacks — though he does land on the 15-Day IL.
For fantasy managers, this is a classic wait-and-see situation. Back injuries can escalate quickly, and the IL placement means he won't be available for at least two weeks regardless of optimism around his timeline. If you're in a streaming league, now is the time to scan the fantasy baseball waiver wire for a viable replacement in your rotation.
Confidence: 85% — High severity signal sourced directly from ESPN's MLB injury report. Drop or stash depending on your roster depth, but don't hold a roster spot with blind faith.
Dean Kremer (BAL) — Return from Injury
Kremer threw 35 pitches and completed fielding drills as he works back from a right quad strain, with an early July return target now in focus. The Baltimore rotation has already been impacted by Bassitt's absence, making Kremer's timetable more relevant than it might otherwise be.
Fantasy managers in deeper leagues should monitor his progression closely as he approaches game action. An early July activation could make him a sneaky fantasy baseball pickup if he re-establishes his role in what could be a stretched-thin Baltimore rotation.
Confidence: 65% — Medium severity, still dependent on how he responds to live game reps. Keep him on your watchlist but don't spend FAAB aggressively yet.
Lourdes Gurriel Jr. (ARI) — Return from Injury
Gurriel played seven innings in his first game action since suffering a hamstring strain and is now tracking toward a mid-June return. That timeline puts his activation potentially just days away, making this one of the more actionable pieces of MLB player news on today's board.
In standard formats, Gurriel's return means he reclaims his spot in a productive Arizona lineup. He's a multi-category contributor when healthy, offering batting average upside alongside moderate power. If he's sitting on your waiver wire, this is the time to add him before his activation triggers a roster crunch in your league.
Confidence: 65% — Hamstring injuries can linger, but the fact that he logged seven innings in rehab is an encouraging sign. Target him on the fantasy baseball waiver wire now if rostered percentage in your league is low.
Jordan Lawlar (ARI) — Return from Injury
Lawlar has been cleared for a rehab assignment after fracturing his right wrist and has gone 6-for-28 with 4 walks over 8 rehab games. Once activated, he's expected to slot into an outfield role for Arizona — at least until Gurriel returns from his own rehab stint.
The wrist fracture recovery is the key variable here. His 6-for-28 line isn't explosive, but the plate discipline (4 walks) suggests he's seeing the ball reasonably well. Once he's in the active lineup, his upside as a multi-position contributor with speed potential makes him worth a speculative add.
Confidence: 65% — Monitor the official activation announcement closely. His window as a full-time outfielder may be short once Gurriel returns, but even a two-to-three week run of regular at-bats has value in the right formats.
Carlos Santana (ARI) — Return from Injury
Santana is advancing through his rehab assignment with a strong performance — going 2-for-3 with a home run and 2 RBI — but faces a crowded depth chart at first base and DH with multiple Arizona players nearing return simultaneously. His fantasy role upon activation remains genuinely unclear.
The power production in rehab is a positive signal, but the logjam in Arizona's lineup limits his ceiling. Santana is best viewed as a speculative deep-league add or a temporary streamer if he gets consistent playing time. In shallower leagues, the roster spot is likely better spent elsewhere given the role uncertainty.
Confidence: 65% — Strong individual performance, but crowded roster situations are the enemy of consistent fantasy value. Proceed with caution.
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These five signals are just a snapshot of what's moving the fantasy baseball waiver wire today. Injury timelines shift fast, and the managers who react first to activation news and lineup changes are the ones who win championships. Get real-time signals and AI-powered lineup advice at PlayCaller — free 7-day trial at playcallerapp.com