Red Sox Bullpen Depth Takes Another Hit as Gamboa Gets the Call and Sandoval's Return Slips Further Away

Per the team's announcement, the Red Sox have selected the contract of 29-year-old lefty Alec Gamboa from Triple-A Worcester, slotting him in to replace Danny Coulombe, who landed on the 15-day IL with cervical spasms. To clear the 40-man roster space, Patrick Sandoval was shifted to the 60-day IL — effectively ending any realistic hope of seeing the veteran left-hander contribute before late May at the earliest. Boston heads into Detroit having burned through its pitching depth at an alarming rate.

Gamboa is a legitimate curiosity, not a savvy late-season acquisition. The 2019 Dodgers ninth-round pick never cracked the majors in L.A.'s system, caught on with the KBO's Lotte Giants last year, and posted a 3.58 ERA over 108 innings in a notoriously hitter-friendly environment — striking out nearly 25% of batters faced while generating grounders at a 55.2% clip. Boston liked what they saw and brought him in on a minor league deal. His 13 innings at Triple-A Worcester show a bloated 6.23 ERA, but a .405 BABIP is doing most of the damage; his 25.4% strikeout rate and 57.9% grounder rate are the real signal.

The broader pitching picture in Boston is a slow-motion disaster. Garrett Crockett, Sonny Gray, Kutter Crawford, Johan Oviedo, and Tanner Houck are all on the IL. Ranger Suárez left his last start with a hamstring strain and is day-to-day. What's left in Boston's rotation is Brayan Bello — currently carrying a 9.12 ERA — alongside Payton Tolle, Connelly Early, and Jake Bennett. That's not a rotation. That's a damage-control operation.

For bettors, this situation has sharp implications for Boston team totals and first-five-inning lines. Bello's ERA isn't just an ugly number — he's been leaking runs at every level of the strike zone, and the Tigers' lineup isn't one you want to throw a struggling pitcher against without a safety net. When Gamboa does enter games, his extreme ground-ball tendency should suppress big innings, but he's entirely unproven at this level and walking into one of the higher-leverage bullpen situations in the AL. Boston's inability to strand runners and limit damage has been a recurring theme, and the thin rotation feeding into that bullpen compounds the problem. Lean toward overs on Boston team totals only if their opponent's starter is similarly compromised — otherwise the mismatch runs the other way.

On the Sandoval front, the 60-day IL move is a tell. The biceps soreness that shut down his rehab after two outings points to a recovery that's messier than the $18.25MM, two-year deal implied. With his 60-day clock running retroactive to his original IL placement, reinstatement before late May is the floor — but betting on him pitching meaningful innings before June is optimistic. For any stretch of Red Sox games over the next three-plus weeks, factor in that this rotation is essentially three to four games deep with viable starters, and structure your team-total and first-five bets accordingly.