The Seattle Mariners (22-24) host the Oakland Athletics (10-38) to start a four-game series at T-Mobile Park, with first pitch at 9:40 PM ET on Monday. The Mariners are on the back of a series defeat to the Braves, and the Athletics a series loss to the Astros.

The Mariners will give the nod to Luis Castillo (2-2, 3.31 ERA), who is eyeing win No. 3 on the season, and the Athletics will turn to Kyle Muller (1-3, 7.71 ERA).

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Mariners vs. Athletics Pitcher Matchup Info

  • Date: Monday, May 22, 2023
  • Time: 9:40 PM ET
  • TV: MLB Network
  • Location: Seattle, Washington
  • Venue: T-Mobile Park
  • Live Stream: Watch this game on Fubo!
  • Probable Pitchers: Castillo - SEA (2-2, 3.31 ERA) vs Muller - OAK (1-3, 7.71 ERA)

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Explore More About This Game

Mariners Probable Starting Pitcher Tonight: Luis Castillo

  • The Mariners' Castillo (2-2) will make his 10th start of the season.
  • The right-hander's last appearance was on Tuesday, when he threw five innings against the Boston Red Sox, giving up five earned runs while allowing six hits.
  • The 30-year-old has an ERA of 3.31, a 5.27 strikeout-to-walk ratio and a WHIP of 1.045 in nine games this season.
  • He has started nine games this season, earning a quality start (6 or more IP, 3 or fewer ER) in three of them.
  • Castillo has nine starts in a row of five innings or more.

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Athletics Probable Starting Pitcher Tonight: Kyle Muller

  • Muller gets the start for the Athletics, his 10th of the season. He is 1-3 with a 7.71 ERA and 30 strikeouts in 42 2/3 innings pitched.
  • In his most recent time out on Wednesday, the lefty went four innings against the Arizona Diamondbacks, giving up five earned runs while surrendering eight hits.
  • The 25-year-old has put together a 7.71 ERA and 6.4 strikeouts per nine innings over nine games this season, while allowing a batting average of .349 to opposing batters.
  • So far this season, Muller has not recorded a quality start.
  • Muller heads into this game with five outings of five or more innings pitched this season.

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