In five seasons since entering the NFL in 2011, Torrey Smith has never missed a game.
According to CSN Bay Area, Smith's streak of 77 consecutive appearances ranks third among active wide receivers, trailing only Eric Weems (115) of the Atlanta Falcons and Brandon Tate (93) of the Cincinnati Bengals.
That distinction, however, appears to be somewhat in question entering Sunday's Week 15 tilt versus the Bengals. Smith is listed a questionable for the game with back and toe injuries.
The wide receiver did not practice on Wednesday or Thursday, but he was a limited participant on Friday.
"There's some great folks around here helping me rehab," Smith said. "I just have to be smart and hope I'm good enough to go on Sunday."
Smith acknowledged that the consecutive games streak matters to him. But that won't persuade him suit up if his body isn't ready.
"I take a lot of pride in being available, which is half the battle in the NFL where there's a 100 percent injury rate," Smith said. "You have to be able to play through injuries, which I have in the past.
"But at the end of the day, what I'm dealing with, I have to be smart. I'll make the right decision."
Elsewhere on the injury report, guard/tackle Alex Boone (knee) and linebacker Michael Wilhoite (ankle) have been ruled out of Sunday's contest. Marcus Martin is expected to start at left guard while Daniel Kilgore mans center. Gerald Hodges, as he did last week in Cleveland, will likely fill in for Wilhoite.
Linebacker Aaron Lynch (concussion), tight end Garrett Celek (concussion) and cornerback Tramaine Brock (hamstring) are all listed as questionable. Lynch and Brock were limited in practice on Friday. McDonald has cleared the league's concussion protocol and was a full participant at practice.
4 more notes from the 49ers locker room
1. NaVorro Bowman has been around Jim Tomsula ever since originally joining the 49ers as a rookie in 2010.
Now a three-time All-Pro and team captain, Bowman was asked if he'd like to see Tomsula continue to coach the team in 2016.
"I love Tomsula. I've been with him for a long time," Bowman said. "He knows me and I know him, so it's always been a good relationship."
Smith expressed a similar sentiment.
"Tomsula has been one of my favorite coaches that I've ever had," Smith said. "I think he's a great man. It sucks that we haven't had the results that we need, but I want the best for him."
2. Bowman relayed a message he recently received from former teammate and close friend Patrick Willis.
The 49ers may be 4-9, but Willis encouraged Bowman to help his team keep fighting.
According to Bowman, the note went as follows: "I know where you're at. You know what it takes to get out of this slump, so just lead these guys and keep working."
3. With three games remaining and the playoffs officially out of reach, Bowman spoke about the motivation for finishing the season strong.
"It's our job," Bowman said. "You don't want to put any bad tape out there. And we have young guys, so we want to continue to get better and not get sidetracked by the offseason approaching."
4. Earlier on Friday, Tomsula told reporters that he was excited by Garrett Celek's progress as he transitions from defensive tackle to an "edge player."
Tomsula added that Carradine has earned more opportunities by the way "he's attacked it."
Carradine is listed at 295 pounds, but he wants to slim down to between 260-270.
"That's what I'm hoping. I want to play on the outside, have success and help the team win," Carradine said. "All I can do is get my weight down and get back to being comfortable. "