The Brewers announced Friday that they’ve designated infielder Yadiel Rivera for assignment in order to clear a spot on the 40-man roster for right-hander Aaron Wilkerson, whose contract has been selected from Triple-A Colorado Springs. Wilkerson was acquired from the Red Sox in the 2016 trade that sent Aaron Hill to Boston. Rivera, 25, has appeared in just one game for Milwaukee this season thanks in part to improved outfield depth that has helped the team contend in 2017. While Rivera saw action in 35 games last year and tallied 71 plate appearances with a .212/.235/.273 slash, the Brewers have instead relied upon other options in utility infield capacities. In addition to the acquisition of Travis Shaw and the emergence of Orlando Arcia, veteran Eric Sogard has provided significant value in a utility role. Last year’s primary shortstop, Jonathan Villar, has also been on hand all season and bounced around the diamond, as has fellow utilityman Hernan Perez.