When does Yahoo! put players on the DL? The better question may be, when do the major league teams submit who will be on the DL to start the season? Do they do this when they submit their 25 man rosters at the end of spring training? I guess it may be after this, that Yahoo! will change people to "DL" where necessary.
I have Chris Carpenter in my keeper league and would like to put him on the DL obviously to free up a roster spot and he will be on the DL to start the year of course.