The Mariners will send Bryan Woo against Framber Valdez on June 5 in Detroit, with first pitch set for 3:40 PDT on Mariners TV and the radio call on Old reliable. It is a matchup built on run prevention before the first pitch is even thrown.
Woo has allowed the 6th lowest wOBAcon among 174 pitchers who have faced at least 500 batters since the start of 2024, and Valdez is 23rd on that same list. Both are doing it with one of MLB's three worst defenses behind them, which gives every ball in play a better chance to turn into trouble than either starter would prefer.
The Tigers' hitters have seen Woo well enough to matter, though, slashing.208/.240/.292 against him. Detroit is also expected to stay close to its standard look against right-handers, with Zack Short starting over Wencel Perez, while Rob Refsnyder gets the nod over Patrick Wisdom for the Mariners as Dan Wilson keeps things relatively straightforward against the left-handed Valdez.
That is the part that makes this more than a two-name pitching note. The numbers say both starters have controlled contact since the start of 2024, but the defensive backdrop can blur those edges fast, especially in a game where both lineups are being arranged with the matchup in mind. If Woo gets the same weak contact he has managed all season, Seattle is in a strong position to control the game from the first inning on. If the Tigers put balls in play and their defense cannot clean them up, the preview could turn into a warning.
What to watch is simple: whether Woo's contact-management profile holds up against a Tigers lineup that has not solved him, and whether Valdez can keep Seattle from turning a modest number of balls in play into damage. By 3:40 PDT, the question is not who the better starter is. It is which defense can survive the mistakes first.
