Canadian right-hander Matt Brash will not make his first major-league start for Seattle on Tuesday night after the Mariners considered the rookie for the role in a big game.
The Mariners said late Monday they will use Tyler Anderson on short rest Tuesday against the Oakland Athletics.
Daniel Kramer of MLB.com reported earlier Monday that Brash, a native of Kingston, Ont., was at T-Mobile Park with the Mariners on Monday ahead of their series opener against the A's.
The Mariners, who now are 1.5 games behind the Boston Red Sox for the American League's second wild-card spot, will skip left-hander Yusei Kikuchi's turn in the rotation. Kikuchi has struggled badly recently, going 1-6 with a 6.22 ERA since earning his first all-star selection in early July.
Mariners general manager Jerry Dipoto told MLB.com last week that Brash was one of the options being considered for Tuesday.
A fourth-round pick of the San Diego Padres out of Niagara University in 2019, Brash was promoted to triple-A Tacoma last week after going 3-2 with a with a 2.13 ERA in 10 starts for double-A Arkansas.
His highlight at Arkansas was being part of a combined no-hitter as he threw six shutout innings while striking out 11 to start the game on Sept. 2.
Brash, acquired by Seattle in a trade with San Diego in 2020, started 2021 at Class High-A Everett.
The 23-year-old Brash is Seattle's No. 10-ranked prospect.