Originally Posted by Mario-Rijo
As far as K-Rod goes he might have been one of those 60 day DL replacements and didn't have to be active in August, right?
Yes, that's correct. As long as you are in the organization by Aug. 31, you are eligible to be a replacement for one of the 60-day guys at your position.
That's why if someone on the 40-man roster from the minors was injured - like Dumatrait a couple years ago when he had TJ surgery - the Reds would promote them to the 25-man on Aug. 31, then immediately put them on the 60-day DL to create another spot for a replacement.