That article, while long, is a good read. I wanted to know more about options and rosters anyway. It's complicated due to occurring on a weekend.
Summary cut and lasted from article:
SUMMARY: Chad Jenkins was added to the 40-man roster and was assigned to the Toronto Blue Jays (MLB). Jesse Chavez designated for assignment and was removed from the 25-man roster while remaining on the 40-man roster. He will be optioned to AAA Las Vegas after his waiver arrives from the Commissioner. The Blue Jays now have 40 players on their 40-man roster.