Getting called up doesn't use an option year, only being sent down. At the beginning of the year everyone who is on the 40 man roster that starts the year in the minors has used an option year by being "sent down" at the end of spring training" However, in a case where a guy is added to the 40 man roster in season, he doesn't burn an option until he is sent down. Say Bobby Scales (added to 40 man during the season simultaneously with his call up) never got sent down this year, he'd still have 3 full option years remaining. Good explanation. A good way to think about it is this: Any time a player is on the 40-man roster, but not on the active major league 25-man roster or on the major league disabled list, he's "burning" an option year. This is a slight oversimplification, but it's a very good rule of thumb.