If Hanrahan pitches for Triple-A Pawtucket on Friday, the venue would be Buffalo. The PawSox return for a long homestand after that. The righty would probably only need two to three rehab appearances before coming back to the Red Sox.
Lefty reliever Craig Breslow, who struggled in poor weather conditions for Double-A Portland on Tuesday, will pitch for Pawtucket on Saturday.
There is no timetable for lefty Franklin Morales to pitch in a game. His Minor League rehab has been interrupted by a strained pectoral muscle. Because he already made a start for Class A Greenville, the Red Sox can stop the 30-day clock on his rehab and then restart it if need be.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.