Rockies place RHP Antonio Senzatela on 15-day injured list

The Rockies placed starter Antonio Senzatela on the 15-day injured list with a low back strain. Colorado also selected catcher Brian Serven to the big league roster, optioned Dom Nuñez to Triple-A Albuquerque and recalled reliever Justin Lawrence.

Senzatela departed Monday’s outing against the Giants after two innings. The righty came out for the top of the third but left the game during his pre-inning warm-ups in discomfort. The injury will obviously cost him some time, but Danielle Allentuck of the Colorado Springs Gazette tweets the organization is hopeful he can return when first eligible two weeks from now. The Rox are off on Thursday, so they can proceed with the remaining four of Germán Márquez, Kyle Freeland, Chad Kuhl and Austin Gomber on regular rest until next Tuesday.

Through his first seven starts on the year, Senzatela owns a 4.55 ERA. He’s struck out just 11 of the 137 batters he’s faced (a league-low 8%). That’s a concerning mark even for Senzatela, who typically posts one of the lower strikeout numbers in the game. Nevertheless, his blend of strong control and ground-balls has translated to decent enough back-of-the-rotation production. Colorado was clearly pleased with his effort, rewarding him with a five-year extension last September.

Serven, meanwhile, will step onto the roster as the backup to Elias Díaz. That role had fallen to Nuñez to start the year, but he’s struggled in limited playing time. Serven, 27, is off to a .273/.406/.506 start with the Isotopes. He’s popped five home runs and drawn 16 free passes while going down on strikes just 15 times.

A former 5th-round pick out of Arizona State, Serven is now in line for his first MLB action. The right-handed hitter owns a more modest .245/.318/.429 slash line over parts of six professional seasons, but his hot start earned him a spot on the depth chart. Colorado had previously been carrying only Díaz and Nuñez as catchers on the 40-man roster.