Guardians RHP Ben Lively left off ALDS roster vs. Tigers - ESPN

Ben Lively was left off Cleveland's roster for the American League Division Series against Detroit despite being an invaluable addition to the Guardians' starting rotation this season.

Lively went 13-10 with a 3.81 ERA in 29 starts for the Guardians, who signed him to a one-year contract as a free agent in December. The right-hander was arguably the club's most consistent pitcher for the first three months of the season.

The Guardians and Tigers announced their rosters about three hours before Game 1 on Saturday.

Added to give Cleveland depth, Lively helped the AL Central champions overcome the loss of former Cy Young winner Shane Bieber, who made just two starts before having season-ending Tommy John surgery.

The Guardians also were without starter Gavin Williams until July because of an elbow injury, and Triston McKenzie and Logan Allen — both penciled in as starters — struggled and were sent to the minor leagues.

Cleveland's bullpen has been MLB's best all season, and manager Stephen Vogt elected to carry 12 pitchers. Two notable contributors were left off: Nick Sandlin, who went 8-0 with a 3.75 ERA in 68 games, and Pedro Avila, who was 6-1 with a 3.81 ERA in 54 appearances.

Starter Alex Cobb, who ended the season on the injured list because of a finger blister, is on the ALDS roster. He is a candidate to start Game 3, though Vogt could choose to use his bullpen from start to finish.