MLB Transactions from August 22, 2016

Texas Rangers optioned RHP Nick Martinez to Round Rock Express.
San Diego Padres sent 2B Jemile Weeks on a rehab assignment to AZL Padres.
Kansas City Royals sent LHP Jason Vargas on a rehab assignment to Omaha Storm Chasers.
San Diego Padres placed LF Jabari Blash on the 15-day disabled list retroactive to August 19, 2016. Sprained left middle finger.
San Diego Padres recalled Luis Sardinas from El Paso Chihuahuas.
Seattle Mariners recalled Guillermo Heredia from Tacoma Rainiers.
Seattle Mariners placed RHP Drew Storen on the 15-day disabled list retroactive to August 20, 2016. Right shoulder inflamation.
Los Angeles Dodgers sent RHP Louis Coleman on a rehab assignment to AZL Dodgers.
Seattle Mariners signed free agent RHP Bryan Evans to a minor league contract.
Colorado Rockies placed RHP Scott Oberg on the 15-day disabled list retroactive to August 20, 2016. Right arm axillary artery thrombosis.
Baltimore Orioles sent LHP T.J. McFarland on a rehab assignment to Bowie Baysox.
New York Mets recalled Robert Gsellman from Las Vegas 51s.
New York Mets placed LHP Steven Matz on the 15-day disabled list retroactive to August 15, 2016. Left shoulder tightness.
Oakland Athletics recalled Arismendy Alcantara from Nashville Sounds.
Baltimore Orioles optioned Caleb Joseph to Norfolk Tides.
Baltimore Orioles activated C Matt Wieters from the paternity list.
Detroit Tigers sent SS Jose Iglesias on a rehab assignment to Toledo Mud Hens.
Boston Red Sox optioned LHP Henry Owens to Pawtucket Red Sox.Boston Red Sox activated LF Chris Young from the 15-day disabled list.
Chicago White Sox sent C Alex Avila on a rehab assignment to Charlotte Knights.
Washington Nationals recalled A.J. Cole from Syracuse Chiefs.
Washington Nationals placed RHP Stephen Strasburg on the 15-day disabled list retroactive to August 21, 2016. Right elbow soreness.
Baltimore Orioles sent LHP Brian Duensing on a rehab assignment to GCL Orioles.
Atlanta Braves sent RHP Williams Perez on a rehab assignment to GCL Braves.
Oakland Athletics placed DH Billy Butler on the 7-day disabled list. Undergoing concussion protocol.
Colorado Rockies recalled RHP Carlos Estevez from Albuquerque Isotopes