Giants Select Caleb Kilian

The Giants announced their Opening Day roster moves today. Outfielder Jared Oliva and right-hander Caleb Kilian were selected to the 40-man. In corresponding moves, left-hander Reiver Sanmartin was placed on the 60-day injured list and outfielder Luis Matos has been designated for assignment. It had been reported yesterday that the Giants were likely to select Oliva and designate Matos. The Giants also announced that catcher Eric Haase has been released from his minor league deal and that Rule 5 catcher Daniel Susac has made the team.

Kilian, 29 in June, was signed to a minor league deal in the offseason. He had an impressive camp, tossing 9 1/3 innings while only allowing one earned run. He racked up 11 strikeouts while only issuing two walks.

That strong performance will allow him to make the roster of his original organization. Kilian was drafted by the Giants in 2019 but was flipped to the Cubs as part of the Kris Bryant trade in 2021. He only got to make eight appearances for the Cubs from 2022 to 2024. He was injured for most of 2025 and only made 11 minor league appearances.

Now that he appears to be healthy and pitching well, he’ll make it back to the big leagues. He is out of options and will have to be kept on the active roster or else removed from the 40-man entirely. He has less than a year of service time, so he can be retained for the long term if this season goes especially well.

The San Francisco bullpen has opportunities available because they traded Tyler Rogers and Camilo Doval last year and then lost Randy Rodríguez to Tommy John surgery. Their moves to replace those losses were mostly injury reclamation projects, such as Kilian himself.

Sanmartin’s transfer is not a surprise. A waiver claimee from November, it was reported a few weeks ago that he had suffered a significant hip flexor strain that was going to keep him out of action for at least three months.

Behind the plate, the Giants have Patrick Bailey but the backup job was up for grabs. In December’s Rule 5 draft, the Giants got Susac via a trade. The Twins technically selected him from the Athletics fourth overall in that draft but then immediately flipped him to the Giants for minor league catcher Miguel Caraballo.

The fact that the Giants actually gave up a player in order to jump the Rule 5 queue suggested they felt good about Susac’s chances of being an impact guy for them. He helped his own cause by putting up a .350/.386/.550 line in spring training. That was helped by an unsustainable .400 batting average on balls in play but it was enough to get him the job regardless.

As a Rule 5 guy, he can’t be optioned to the minors and will have to stay on the active roster all year long for the Giants to fully acquire his rights. If they want to cut him at any point this year, he could be traded or put on waivers. Any claiming team would take on the same Rule 5 restrictions. If he were to clear waivers, he would have to be offered back to the A’s.

Susac getting the job squeezes out Haase, who had signed a minor league deal in January. He had a huge spring, slashing .286/.375/.536, but also struck out in 14 of his 32 plate appearances. That’s fairly reflective of his big league career, as he has 48 home runs in 1,224 plate appearances but has been punched out at a 30.7% clip. He’ll head out to the open market to see what opportunities are available this week as all clubs shuffle their rosters.