Source: Mike Florio, NBC Sports Pro Football Talk 
When it comes to whether receiver Michael Crabtree will make his 2013 debut on Sunday against the Saints, Harbaugh was uncharacteristically chatty.
“It doesn’t look probable, no,” Harbaugh told reporters on Friday.
Harbaugh also does not expect Michael Crabtree to play this week. #SFvsNO 
— San Francisco 49ers (@49ers) November 15, 2013