Huston Street has been placed on the DL by the Oakland A's. Justin Duchscherer is one of the best setup men in baseball, however, he is day-to-day with a hip injury. I have picked him up in a few of my leagues regardless, but if he can't pitch Kiko Calero is a good bet to get the save opp. It's your call, but I've picked up Duchscherer.
UPDATE: Duchscherer will be fine to pitch while Street is out. He should be picked up in all leagues he is available.