Mariners' Sam Carlson: Throws first live BP

Carlson (elbow), who missed the last two seasons and underwent Tommy John surgery in July 2018, threw his first live batting practice since the procedure Friday, Greg Johns of MLB.com reports.

The momentous occasion, which saw Carlson throw 20 pitches against fellow minor leaguers, marked the right-hander's first time facing hitters in 32 months. Carlson experienced several setbacks during the process, including a scare last August where the pitcher thought he may have torn his ulnar collateral ligament a second time. The 21-year-old has just three innings of AZL Rookie-level ball under his belt so far as a professional, and given his extended recovery, the organization will proceed with caution in terms of his activity level over the coming months.