With the news of outfielder Ronald Acuna Jr. (knee) being sidelined for the season with a torn ACL, the Atlanta Braves have promoted outfielder J.P. Martinez. Martinez, 28, was acquired from the Texas Rangers this offseason and has been a regular starter for Triple-A Gwinnett. On the season, Martinez has hit .265 with three homers, 12 RBI and 14 stolen bases. Martinez does a little of everything, but he is unlikely to see much playing time in Atlanta right away with Adam Duvall and Jarred Kelenic expected to get the share of at-bats freed up by Acuna being absent. Martinez can safely remain on the waiver wire.