OFFICE OF THE COMMISSIONER — Suspended Washington Nationals C Tres Barrera for 80 games following a positive test for a performance-enhancing substance, a violation of Major League Baseball’s Joint Drug Prevention and Treatment Program.
BOSTON RED SOX — Claimed LHP Stephen Gonsalves off waivers from the New York Mets and optioned him to Red Sox Alternate Training Site.
CLEVELAND INDIANS — Recalled RHP Zach Plesac from Columbus Clippers (IL). Placed OF Tyler Naquin on the 10-day IL retroactive to July 22. Optioned RHP Hunter Wood to Indian Alternate Training Site.
DETROIT TIGERS — Claimed RHP Carson Fulmer off waivers from Chicago White Sox.
HOUSTON ASTROS — Recalled INF Taylor Jones. Palced INF Aledmys Diaz on the 10-day IL.
KANSAS CITY ROYALS — Selected the contract of RHP Brady Singer from Royals Alternate Training Site. Optioned C Meibrys Viloria to Royals Alternate Training Site.