Minnesota Twins right fielder Robbie Grossman fractured his left thumb in an outfield collision Thursday during the second game of the doubleheader against the Cleveland Indians.Grossman collided with center fielder Byron Buxton on a flyout in the second inning and was on the ground for a few moments. He stayed in the game and singled in the bottom of the inning.However, Grossman was replaced by pinch hitter Max Kepler before his at-bat in the third inning. Grossman is hitting .241 this season with seven homers and 35 RBIs.--Indians third baseman Jose Ramirez left the opening game of the doubleheader after being hit in the right forearm by a second-inning fastball from Twins pitcher Kyle Gibson.Ramirez hopped down the first base line before dropping to a knee to be examined by a trainer. Ramirez was in obvious pain as manager Terry Francona looked on. He walked off holding his arm and was replaced by Giovanny Urshela.Ramirez leads the American League with 61 extra-base hits this season. A first-time All-Star this year, Ramirez is hitting .308 with 18 home runs and 58 RBIs.--The Twins activated left-hander Glen Perkins from the 60-day disabled list after he recovered from surgery to repair a torn labrum in his left shoulder.He appeared in the first game of the doubleheader, allowing two runs in one-third of an inning. Perkins has posted an 0-1 mark with a 6.14 ERA in eight rehab appearances in Minnesota's minor league system.In a corresponding move, Minnesota placed left-hander Dietrich Enns on the 10-day disabled list with a left shoulder strain.--Arizona Diamondbacks right-hander Rubby De La Rosa will undergo a second Tommy John surgery, manager Torey Lovullo announced prior Thursday.De La Rosa will need the surgery to repair the ulnar collateral ligament in his right elbow. The 28-year-old had his initial surgery performed in 2011 near the tail end of his rookie season with the Los Angeles Dodgers.Lovullo said the date of the upcoming surgery has yet to be disclosed, but he doesn't expect De La Rosa to return next season. De La Rosa posted an 0-1 mark with a 4.70 ERA in nine appearances (7 2/3 innings) with the Diamondbacks this season.--The St. Louis Cardinals placed right-handed reliever Trevor Rosenthal on the 10-day disabled list due to right posterior elbow irritation.Rosenthal was sent back to St. Louis for testing after allowing a homer Wednesday to Boston Red Sox shortstop Xander Bogaerts on a 91.4 mph fastball. Rosenthal had not allowed a hit on any fastball slower than 96.3 mph before the Wednesday game at Fenway Park.In 50 games this season, Rosenthal is 3-4 with a 3.40 ERA and 11 saves. He converted seven straight saves from July 28 through last Saturday.--The New York Mets placed infielder Jose Reyes on the 10-day list with a strained left oblique strain.Reyes was scratched from the Wednesday game about two hours before first pitch after appearing to get hurt during batting practice. Reyes was in the original starting lineup and batting leadoff before being scratched.This season, Reyes is hitting .223 with nine homers and 39 RBIs. A shortstop for most of his career, Reyes has made 24 starts at third, 55 starts at shortstop and five at second base.