ST. LOUIS (AP) - Right-hander Jake Westbrook, who has struggled for several starts, is being placed on the 15-day disabled list by the St. Louis Cardinals because of a lower back strain.
The move, announced on Friday, is retroactive to Thursday.
Rookie right-hander Carlos Martinez was recalled from Triple-A Memphis and could take Westbrook's spot in the rotation.
In his last five starts, Westbrook has given up 30 earned runs in 26 innings. He was on the disabled list earlier this year with an elbow injury.
The 21-year-old Martinez made his first career major league start on Aug. 8 against the Dodgers and is 0-1 in 11 games with St. Louis. He is 5-3 with a 2.66 ERA in 12 starts at Memphis.

Top MLB Public Bets

MLB Top Stories

Thumbnail Opening 2018 World Series Odds The 2018 World Series opening odds have been released. Who is favored, who is the biggest challenger, and who is also in the mix?
Thumbnail Astros vs. Dodgers Pick Are the Houston Astros going to clinch their first-ever World Series title Wednesday night in Game 7 with an upset win at the Los Angeles Dodgers? Game time is...
Thumbnail Astros vs. Dodgers Pick Can the Houston Astros clinch their first-ever World Series title Tuesday night in Game 6 at the Los Angeles...
Thumbnail Dodgers vs. Astros Pick Are the Los Angeles Dodgers going to ride Clayton Kershaw to a victory over the host Houston Astros in a pivotal Game 5 of the World Series Sunday night? First pitch is at...
Thumbnail Dodgers vs. Astros Pick Are the Houston Astros going to win a third straight game over the visiting Los Angeles Dodgers Saturday night in Game 4 of the World Series? First pitch is at...

MLB Team Pages