MLB Transactions from August 7, 2016

Detroit Tigers placed RHP Jordan Zimmermann on the 15-day disabled list retroactive to August 5, 2016. Right lat tightness.
Detroit Tigers recalled Kyle Ryan from Toledo Mud Hens.
Detroit Tigers placed 3B Nick Castellanos on the 15-day disabled list. Fractured left hand.
Detroit Tigers recalled 3B Casey McGehee from Toledo Mud Hens.
Miami Marlins optioned Nefi Ogando to New Orleans Zephyrs.
Houston Astros recalled Tony Kemp from Fresno Grizzlies.
Atlanta Braves designated 1B Brandon Snyder for assignment.
Atlanta Braves selected the contract of Madison Younginer from Gwinnett Braves.
Houston Astros placed LF Colby Rasmus on the 15-day disabled list retroactive to August 5, 2016. Cyst in right ear.
Oakland Athletics placed RHP Sonny Gray on the 15-day disabled list. Strained right forearm.
Oakland Athletics selected the contract of RHP Chris Smith from Nashville Sounds.
Oakland Athletics transferred C Josh Phegley from the 15-day disabled list to the 60-day disabled list. Cyst in right knee.
Colorado Rockies activated LF Gerardo Parra from the 15-day disabled list.
Colorado Rockies optioned 3B Rafael Ynoa to Albuquerque Isotopes.
Seattle Mariners optioned 2B Luis Sardinas to Tacoma Rainiers.
Seattle Mariners optioned RHP Cody Martin to Tacoma Rainiers.
Seattle Mariners recalled Mike Freeman from Tacoma Rainiers.
Seattle Mariners activated RHP Nick Vincent from the 15-day disabled list.
Cincinnati Reds sent RHP Alfredo Simon on a rehab assignment to Louisville Bats.
Cincinnati Reds sent RHP A.J. Morris on a rehab assignment to Louisville Bats.
Arizona Diamondbacks recalled CF Socrates Brito from Reno Aces.
Arizona Diamondbacks sent RHP Rubby De La Rosa on a rehab assignment to AZL D-backs.
Kansas City Royals sent LHP Jason Vargas on a rehab assignment to AZL Royals.
Tampa Bay Rays sent 3B Matt Duffy on a rehab assignment to Durham Bulls.
Arizona Diamondbacks placed RF David Peralta on the 15-day disabled list retroactive to August 6, 2016. Right wrist inflamation.
Arizona Diamondbacks released RHP Josh Collmenter.
Atlanta Braves claimed Chaz Roe off waivers from Baltimore Orioles.
Atlanta Braves transferred RHP Williams Perez from the 15-day disabled list to the 60-day disabled list. Right rotator cuff strain.
Los Angeles Dodgers selected the contract of Rob Segedin from Oklahoma City Dodgers.
Los Angeles Dodgers optioned Chris Taylor to Oklahoma City Dodgers.
Los Angeles Dodgers transferred LF Trayce Thompson from the 15-day disabled list to the 60-day disabled list. Lower back irritation.
Seattle Mariners sent SS Ketel Marte on a rehab assignment to Tacoma Rainiers.