Stribling (hamstring) remains day-to-day and won't practice Monday, Nick Wagoner of ESPN.com reports.
Stribling also sat out Saturday's session due to hamstring tightness, joining Mike Evans (quadriceps), Christian Kirk (calf) and Ricky Pearsall (knee, IR) as currently injured 49ers wide receivers. Once Stribling is back to full health, he'll be competing for WR reps behind Evans, Deebo Samuel and Kirk, but until then, the likes of Demarcus Robinson, Jordan Watkins and Jacob Cowing will pick up the slack at the position.