The Twins placed an outfielder on the 10-day injured list on Wednesday.
Brent Rooker, who was called up when Josh Donaldson went on the IL, left Tuesday's game with an apparent cervical strain.
Rooker was off to a slow start with the team this season. He appeared in three games, hitting .091 with six strikeouts.
The Twins replaced Rooker on the 26-man roster with left-handed pitcher Brandon Waddell. Waddell was on the St. Paul taxi-squad. Waddell will wear the number 58 and is available for today's game in Detroit.
