From the Naples Daily News:

Outfielder Jason Kubel will play designated hitter in
Wednesday's scrimmage with Division II school
Concordia (Minn.) as he begins the latest chapter of
his comeback. Kubel is competing for a starting job in
right field after missing the entire 2005 season with
an injured left knee. Liriano and Nathan also are
scheduled to pitch in the Concordia game, which is
scheduled for 10:30 a.m. on one of the practice fields.