Or maybe he's giving a guy who didn't get a break in the summer, and seems to be suffering for it, a few days off to recharge and re-set.
I'm guessing no-one wants Redmond to fail, but clearly his confidence is shot. Like you I thought he might get a game today, but there could be any number of reasons why he isn't (if in deed it is the case that he's not) in the squad.