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SF Giants middle infielder draws the short end of the stick in latest roster move

Daniel Susac is back
May 10, 2026; San Francisco, California, USA; San Francisco Giants infielder Christian Koss (50) scores a run on a two RBI single hit by infielder Willy Adames (not pictured) against the Pittsburgh Pirates during the tenth inning at Oracle Park. Mandatory Credit: Robert Edwards-Imagn Images
May 10, 2026; San Francisco, California, USA; San Francisco Giants infielder Christian Koss (50) scores a run on a two RBI single hit by infielder Willy Adames (not pictured) against the Pittsburgh Pirates during the tenth inning at Oracle Park. Mandatory Credit: Robert Edwards-Imagn Images | Robert Edwards-Imagn Images

The SF Giants activated catcher Daniel Susac from the injured list before Friday's game against the A's. In a corresponding roster move, middle infielder Christian Koss was optioned back to Triple-A, per the team's transaction log.

Susac collected four hitless at-bats in the 5 - 2 loss to the A's, but he did throw out a runner at second base and had a nice swipe tag at home.

The runway has been paved for the 25-year-old backstop to get an extended look behind the plate. Following the trade of Patrick Bailey, he is now the Giants' best defensive option and has gotten off to a torrid start at the plate.

Interestingly, the Giants now have three catchers on the roster. This includes Susac, along with Eric Haase and Jesús Rodríguez. Haase will be the backup catcher for now, whereas Rodríguez will serve as more of a multi-positional catcher.

The SF Giants option Christian Koss back to Triple-A

To make room on the roster, Christian Koss was optioned back to Triple-A. Koss had a respectable year last season, putting up a .676 OPS with three home runs and 23 RBI while playing all around the field. He also was one of the Giants' best hitters in spring training.

Koss was expected to fill a utility role, but his usage was just baffling. Through six weeks of the season, he collected just one hit in 15 plate appearances. He was only getting about two sporadic at-bats each week. The right-handed bat came up in extra innings with the bases loaded last week against the Pittsburgh Pirates, but grounded to keep the game going.

How could any player find a rhythm with so little playing time? This has coincided with the Giants getting off to a brutal 18 - 27 start. The Giants' infield is led by a handful of struggling veterans, including Matt Chapman, Willy Adames, and Rafael Devers. Was there no way to give those players a day off so that Koss could get a couple of at-bats? Why even have 26 players on the roster at that point? I find that baffling.

Koss has also become an emergency reliever in blowout games. He recorded four scoreless frames last season, but that scoreless streak came to an end this year. He has allowed three earned runs across two innings of work.

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