Gennett, who was batting .154 at the time of his demotion and had one hit in his last 26 at-bats, batted .307 in 17 games at Colorado Springs. He had three hits and four RBIs in his final game there on Tuesday.
The Brewers need that offense, manager Craig Counsell said. Milwaukee entered Thursday with a Major League-worst .466 OPS at second base. With Luis Sardinas sent back to Triple-A after batting .221 for the Brewers in 20 games, Counsell's second-base options before Gennett returned were Hector Gomez, who hit .210 in his first 44 games, and Hernan Perez, who had one hit in his first 15 Brewers at-bats after going 2-for-33 for the Tigers.