Athletics Sign Brian Serven, Cade Marlowe To Minor League Deals

The Athletics have signed catcher Brian Serven and outfielder Cade Marlowe to minor league deals, according to each player’s respective transaction tracker at MLB.com. The Prime Agency clients have both been assigned to Triple-A Las Vegas for now but may be invited to big league camp in spring training.

Serven, 31 in May, spent 2025 with the Tigers on a minor league deal. He got into 62 contests for Triple-A Toledo with a .232/.335/.313 batting line. The Tigers didn’t call him up during the campaign and he returned to free agency at season’s end.

He does have 101 big league games on his track record from previous seasons, having suited up for the Rockies and Blue Jays. He only mustered a .187/.247/.293 line in his 299 plate appearances for those clubs but he got strong reviews for his work behind the plate. Outlets like FanGraphs, Statcast and Baseball Prospectus all considered him adequate in terms of blocking and controlling the running game and very strong in terms of pitch framing.

The A’s currently have just two catchers on their 40-man roster. Shea Langeliers is slated to be the regular with Austin Wynns projected to be the backup. Bringing Serven aboard gives them some experienced non-roster depth. If Serven is eventually needed in the big leagues, he may not hit very much but he will at least be a glove-first option for the A’s. If he’s added to the roster at some point, he still has an option and less than two years of service time. That means he can provide roster flexibility and hasn’t yet qualified for arbitration.

Marlowe, 29 in June, joins a new organization for the first time. He was drafted by the Mariners in 2019. He was added to that club’s 40-man roster in November of 2022 to keep him out of the Rule 5 draft.

He has shown some potential with the bat but also with big strikeout numbers. In his 109 big league plate appearances, his .240/.330/.406 line is decent but he has been punched out at a 31.2% rate. He also struck out 29.4% of the time at the Triple-A level over 2023 and 2024. His .246/.340/.419 line for Tacoma over those two seasons isn’t bad at first blush but actually translates to an 89 wRC+ in the hitter-friendly Pacific Coast League.

In February of 2025, the Mariners passed him through waivers unclaimed. He spent last year still in the system but in a non-roster capacity. He began the season on the injured list and didn’t make it into game action until July. He finished the year having played 46 Triple-A contests with a strong .316/.401/.474 line and 123 wRC+. He got some help from a .400 batting average on balls in play but his 23.6% strikeout rate was an encouraging improvement.

The A’s have a strong group of outfielders but there’s no harm in adding some extra non-roster depth. If Marlowe eventually gets a roster spot, he has a minor league option remaining and less than a year of big league service time.

Photo courtesy of Dan Hamilton, Imagn Images