Giants Triple-A depth hit by injuries to Koss, McCray, Santos

The Giants’ Triple-A pipeline took a direct hit, and the timing matters. Christian Koss, Grant McCray and Gregory Santos all landed on the injured list, leaving San Francisco with fewer immediate call-up options and a thinner group of 40-man players in Sacramento. Koss and McCray were two of the four position players on optional assignment, alongside Will Brennan and rookie catcher Jesús Rodríguez, so the roster cushion at the top shrank fast.

Koss was the first blow to land. He has a left wrist fracture, was placed on the Triple-A injured list on May 26, and had not played for Triple-A Sacramento since May 23. The current plan is a re-examination in two weeks, which means the Giants are not getting a clean answer on his availability anytime soon. For a club that values versatility and quick roster shuttles, that is a real loss. Koss was one of the names San Francisco could have turned to without a bigger reshuffle.

McCray’s situation is even more disruptive for the short term. He fractured the hamate bone in his left hand and wrist, then underwent surgery in Arizona on June 4 to remove the bone. MLB.com’s return estimate pushes him to after the All-Star break, which turns what looked like a temporary depth piece into a longer absence. Hamate injuries are notorious for sapping power, and for a player in optional assignment status, that can erase one of the main reasons he is sitting one phone call away from the majors.

Santos adds the third layer of damage. He has a right adductor strain, was placed on the Triple-A injured list on May 26, and is projected to return in late June or early July. That keeps another 40-man arm off the board just as Sacramento and San Francisco would prefer to keep their bullpen moving with some flexibility.

Put together, the injuries do more than empty out a rehab lane. They narrow the Giants’ short-term roster choices, because three 40-man players are down and two of the position-player options San Francisco had stashed in Triple-A are suddenly unavailable. If the big club needs help before the break, the easiest answers just got a lot harder to reach.