Giants activate Daniel Susac from IL, designate Eric Haase for assignment ahead of Mariners opener

The San Francisco Giants activated catcher Daniel Susac from the 10-day injured list, completing a roster move that sets the stage for the team’s second-half start against the Seattle Mariners at T-Mobile Park. The activation also comes with the Giants designating veteran catcher Eric Haase for assignment, a transaction that clears a path for the organization to move forward with a renewed group of catchers as the season enters its most consequential phase.

Susac, 25, returns after missing 16 games, according to the Giants’ official announcement. His return provides the Giants with more stability behind the plate at a time when teams often tighten their game plans and prioritize consistent game calling, pitch framing, and bullpen management. While the move does not guarantee everyday at-bats, it does reduce the risk that the team’s catching workload becomes overextended during a busy stretch.

The Giants’ decision also indicates an internal priority on giving younger options runway. The club indicated it will “move forward with a trio of rookie catchers” in Susac’s stead, framing the catching rotation as a developmental and tactical group rather than a temporary patch. For a team building through the margins, the second-half can be when roles solidify, especially for catchers learning to handle higher-leverage situations.

Alongside Susac’s return, the Giants’ release notes that “Chapman likely to return after road trip.” The phrasing suggests the catcher-rotation picture will continue to evolve over the next week, with Chapman positioned as a later addition rather than an immediate participant in the opener. That matters because the Giants can fine-tune matchups game to game while still anticipating the next phase of roster reinforcements.

Designating Haase for assignment reshuffles the bullpen of options at the position. An assignment designation typically means the team has decided to remove a player from its 40-man roster space while the organization determines whether he will remain in the organization, be traded, or clear waivers. For the Giants, it is an inflection point, not only for Haase’s status but also for how much room they want to allocate to their catching depth.

The immediate focus now is operational: Susac’s readiness for the second-half opener at Seattle, how the Giants use their catching trio behind him, and how the club manages the timing of Chapman’s anticipated return after the road trip. With the schedule tightening into series that define playoff positioning, the Giants will look for the catching staff to provide steady rhythm, particularly around late-inning strategy and pitcher usage.

For fans, the next few days should clarify how the Giants are balancing development with performance needs. The official activation confirms Susac is available for selection, while the assignment of Haase confirms the roster will keep shifting at the position. Once Chapman arrives after the road trip, the catching roles should become more defined, giving the Giants a clearer path through the second-half demands.