Morse recently accepted a position with the Nationals as a part-time analyst on pregame and postgame telecasts and acknowledged that his playing days are over, Bob Nightengale of USA Today reports.
Morse (concussion) is unlikely to play again this season, Andrew Baggarly of The San Jose Mercury News reports.
Morse (concussion) is still feeling the effects of his concussion and will need more time to recover, The San Francisco Chronicle's John Shea reports.
Morse, who's on the 7-day concussion disabled list, is also dealing with a rib injury, Alex Pavlovic of NBC Sports Bay Area reports.
Morse was placed on the 7-day concussion DL on Tuesday, John Shea of the San Francisco Chronicle reports.
Morse is batting .219/.257/.601 in 32 at-bats to start the season.
Morse started at first base and went 1-for-3 with a double and an RBI in Sunday's loss to the Padres.
Morse was recalled from Triple-A Sacramento on Wednesday, Ken Rosenthal of Fox Sports reports.
Morse (hamstring) went 1-for-3 in Wednesday's rehab start with Triple-A Sacramento, Alex Pavlovic of CSN Bay Area reports.
Morse (hamstring) is expected to leave extended spring training Sunday to join Single-A San Jose, Ken Rosenthal of Fox Sports reports.