Walker went 2-for-4 with a solo home run and a stolen base in Saturday's 6-5 win over the Reds.
The 24-year-old took Nick Lodolo deep in the fifth inning, snapping a brief 10-game power drought. Walker has strung together three straight multi-hit efforts, boosting the breakout star's slash line on the season to .301/.362/.559 through 61 contests with 16 homers, 10 steals, 43 runs and 46 RBI.