MLB Daily Dish May 1: Aroldis Chapman, Joel Hanrahan, Tyler Chatwood

Injuries

• The Colorado Rockies placed right-hander Tyler Chatwood on the 15-day DL, according to a team announcement, recalling right-hander Chad Bettis from Triple-A Colorado Springs to take Chatwood's spot.

• The Los Angeles Dodgers transferred right-handed starter Chad Billingsley from the 15-day DL to the 60-day DL, the team announced. Billingsley, who hasn't started more than 30 games in a season since 2011, is recovering from Tommy John surgery that he received in April 2013.

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Roster Moves

• The San Diego Padres activated second baseman Jedd Gyorko from the paternity list and optioned first baseman Tommy Medica to Triple-A El Paso, according to a team announcement.

• The Dodgers purchased the contract of catcher Miguel Olivo from Triple-A Albuquerque and optioned catcher Tim Federowicz to Triple-A, the team announced.

• The Arizona Diamondbacks recalled outfielder Ender Inciarte from Triple-A Reno, according to a team announcement, and optioned left fielder Roger Kieschnick to Reno to make room on the roster.

• The Los Angeles Angels optioned right-hander Yoslan Herrera to Triple-A Salt Lake, the team announced.

Rumors

• Cincinnati Reds left-hander Aroldis Chapman is seven to 10 days away from returning to the big league club, according to the Cincinnati Enquirer's C. Trent Rosecrans. Reds manager Bryan Price said Chapman is looking at a minimum of four more rehab appearances, with a mix of starts and bullpen appearances.

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• Free agent reliever Joel Hanrahan is attracting offers from several teams. The Red Sox, Yankees, Rangers, Tigers and Rockies are all interested in Hanrahan, according to CBSSports.com's Jon Heyman. Hanrahan, who held a showcase for scouts a few weeks ago, is expected to sign before holding another session.

• The Detroit Tigers announced they will promote left-handed prospect Robbie Ray to replace the injured Anibal Sanchez in the rotation next Tuesday. Ray, who will make his major-league debut, has posted a 1.59 ERA in 28.1 innings (five starts) at Triple-A Toledo this season.

Signings

• The Atlanta Braves signed free agent left-hander Eric Berger to a minor league contract, according to our own Chris Cotillo. Berger posted a 3.06 ERA in 70.2 innings at Triple-A in the Houston Astros organization last year, but pitched just 1.1 innings in three appearances this season at Triple-A Sacramento (the Oakland A's affiliate) before being released.

Miscellaneous

• Rehab Assignments: Clayton Kershaw (SP, Dodgers) to Double-A Chattanooga, Logan Schafer (LF, Brewers) to Triple-A Nashville