Mariners right-hander Sauryn Lao went unclaimed on outright waivers after his recent DFA, the team announced. He’s been assigned outright to Triple-A Tacoma. Lao has neither three years of MLB service nor a prior outright assignment, so he does not have the ability to elect free agency. He’ll remain with the M’s as a depth arm.
Lao, 25, is a former Dodgers infield prospect who converted to the mound in 2023. He’s posted a 3.61 ERA in 122 minor league innings since making that switch, including a 2.25 earned run average in 12 innings with the Mariners’ Triple-A affiliate in Tacoma this year. He’s punched out 26.6% of his opponents with the Rainiers and limited walks to a 6.5% clip. Lao made one big league appearance — his MLB debut — with Seattle prior to his DFA, during which he pitched 1 2/3 innings with no earned runs and three strikeouts.
The Seattle bullpen has been solid, with a 3.70 earned run average, but not quite as effective as many predicted heading into the season. Andres Munoz, Collin Snider, Carlos Vargas, Gabe Speier and Casey Lawrence have all provided quality results, but the M’s have received shakier performances from Eduard Bazardo, Trent Thornton, Tayler Saucedo and the now-injured Gregory Santos. They’ll get a huge arm back soon if Matt Brash can finish off his minor league rehab stint without issue, but there’s enough uncertainty in Seattle’s middle relief group that Lao could work his way back to the big leagues with continued production in Tacoma.