The 2005 NL Cy Young winner had been steadily progressing from nerve issues on the right side of his body before his back tightened after he finished throwing Sunday.
A three-game interleague series at Busch Stadium starting Friday will be the Rangers' first trip back since the 2011 World Series.
Yadier Molina hit his fifth home run and Jake Westbrook pitched seven innings of two-hit ball in the St. Louis Cardinals' 4-1 victory over the Chicago Cubs on Wednesday night.
Kansas City, which has regrouped after losing 15 of 18, fell 6-3 on Wednesday night to the Cleveland Indians.
After Sunday's race in Michigan, Carl Edwards said he wished Roush Fenway Racing teammate Greg Biffle, who won Sunday's event, would have helped him out more in the early going.
Chicago started fast against Adam Wainwright (10-4) and broke a five-game losing streak in St. Louis with a 4-2 victory Tuesday night.
Held to one run and three hits over seven innings by Ervin Santana, the Indians finally strung something together in the eighth rallying to a 4-3 win over the City Royals on Tuesday night.
The St. Louis Business Journal reported that with the payment to the Rams the St. Louis Convention and Visitors Commission now projects a $2.5 million operating loss for fiscal 2013.
Yadier Molina had a two-run double to lead St. Louis to a 5-2 win over the Chicago Cubs on Monday night.
With a 2-1 win over the Cleveland on Monday night, Kansas City got past .500 for the first time since May 21 and moved past Cleveland into second place in the AL Central.
Once the Kansas City learned that Tampa Bay right-hander Alex Cobb suffered only a mild concussion after taking a line drive to the head, Saturday's 5-3 loss to the Rays was an afterthought.
St. Louis survived a slugfest against the lowest-scoring team in the major leagues and beat Miami 13-7 on Saturday.
Elliot Johnson had a three-run home run for his second hit of an eight-run sixth inning, leading the surging Royals to a 10-1 victory over the Rays.
Adam Wainwright pitched seven scoreless innings to become the major leagues' first 10-game winner in the Cardinals' 2-1 victory over the Mets on Wednesday in New York.
Former Missouri quarterback Blaine Gabbert, a former top-10 draft pick, remains the front-runner to start at quarterback for the Jaguars, but general manager Dave Caldwell and coach Gus Bradley insist it's a wide-open competition that's likely to stretch into the preseason.
Shelby Miller gave up two of his career-worst four runs in the first inning Wednesday night, and the St. Louis Cardinals' streaking offense was stifled in a 5-1 loss to the New York Mets.
Lorenzo Cain hit a tying, two-run home run with two outs in the ninth, and Eric Hosmer had a winning RBI single in the 10th, helping the Royals rally for a 3-2 victory over the Detroit Tigers on Wednesday.
Detroit starter Max Scherzer limited Kansas City to three hits and struck out six in a 3-2 Tigers victory, giving him his ninth straight decision.
St. Louis rookie Michael Wacha recovered from a wild start and Allen Craig hit a three-run home run for the Cardinals in a 9-2 victory over the staggering New York Mets on Tuesday night.
Jeremy Guthrie limited the Detroit Tigers to a two-run home run by Miguel Cabrera in a 3-2 victory to help the Royals to extend their longest winning streak since they won seven straight in September 2011.