LeMahieu (groin) is starting at second base and batting second during Sunday's game against the Diamondbacks, Thomas Harding of MLB.com reports.
LeMahieu was removed from Tuesday's game with a right groin cramp and was sidelined for the following three contests. After several days of rest, the hot-hitting second baseman is set to rejoin the Rockies lineup ahead of their series finale against Taijuan Walker and the Diamondbacks.