The St. Louis Cardinals have announced that pitcher Tyler Lyons has been placed on the disabled list with a right intercostal strain. In the corresponding roster move, the team has recalled pitcher Sam Tuivailala from Memphis (AAA).

The intercostals are a group of muscles which surround the ribs and function in breathing and support for the chest cavity.

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Activated from the disabled list on April 20th, Lyons had made two appearances this season, including a scoreless 7th inning in last night’s game.

Tuivailala was called up a few days agao as part of MLB’s 26th-man rule for double-headers, but did not pitch. Earlier this season, he appeared in three games–allowing a solo home run in 3.0 innings pitched with a pair of strikeouts.

At Memphis this year, Tuivailala had appeared in 8 games with a save and 8 strikeouts.

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