Kaepernick (shoulder) expects to take the field for Friday's preseason game versus the Packers, Nick Wagoner of ESPN.com reports.
Kaepernick tended to what head coach Chip Kelly termed "dead arm" for more than a week, but his return to full practices both Monday and Tuesday has seemingly paved the way for his first appearance of the preseason. So far, Kelly has delayed naming the 49ers' starting quarterback due to Kaepernick's lack of game action. Backing up that sentiment, offensive coordinator Curtis Modkins said, "It's a competition, and Kap hasn't had a chance to perform yet. So, when that happens and when coach [Kelly] feels like it's time, we'll do that. But right now it's not time." Two exhibitions remain for Kaepernick to make a play for the gig, but Blaine Gabbert has handled the first-team reps to this stage of the preseason.
Lewis suffered a torn ACL during Sunday's preseason opener and will now miss the remainder of this season, NFL.com's Ian Rapoport reports.
Lewis was forced out during the third quarter of Sunday's game, when he was the second signal-caller used in wake of Colin Kaepernick (shoulder) being sidelined. However, now that his season has already come to a close, rookie Jeff Driskel should see more reps behind Kaepernick and Blaine Gabbert in practice.
Tartt (undisclosed) was activated from the non-football injury list Saturday, Aaron Wilson of the Houston Chronicle reports.
Tartt was sidelined after tweaking a muscle, but it is unclear where on his body the tweak occurred. However, it does not appear to be a serious issue, as he has returned after a one week absence. The 24-year-old currently projects to be the teams back up strong safety.