Wallner's contract was selected from Triple-A St. Paul on Saturday.

EDGE Analysis

Several of the Twins' outfielders are dealing with injuries, so Wallner will join the active roster after Max Kepler (wrist) was placed on the 10-day IL. Wallner has slashed .275/.409/.538 with 27 home runs, 95 RBI, 90 runs and nine stolen bases over 128 minor-league games this season. He'll start in right field and bat seventh during the first game of Saturday's doubleheader against Cleveland.