Huston Street was diagnosed with a right posterior shoulder strain after leaving Friday's game in the ninth inning. A DL trip seems like a given for Street. Our best guess is that he's put on target for an early June return, assuming that the MRI he's sure to undergo shows up nothing more severe than the strain. Andrew Cashner is probably the favorite for saves in San Diego at the moment, though Luke Gregerson could factor in if the youngster struggles.