SANTA CLARA, Calif. (AP) — San Francisco 49ers defensive tackle Ricky Jean Francois has been preparing all week to start in place of All-Pro Justin Smith on the NFL's second-ranked defense.
The 49ers remain uncertain whether that will actually happen Sunday night in their NFC West showdown against the Seattle Seahawks.
Smith's availability is in question after he missed practice Friday for the third consecutive day because of an elbow injury, placing his streak of 185 consecutive starts in jeopardy.
The 49ers listed Smith as doubtful on an injury report they submitted to the NFL office Friday morning. He was upgraded to questionable later in the day, even though he didn't participate in the team's afternoon session.
Coach Jim Harbaugh, who indicated earlier in the week he expected Smith to play against the Seahawks, didn't elaborate on Smith's status other than to say "he's done quite a bit, rehab, strengthening, conditioning."
Smith has the third-longest active starting streak in the NFL behind Tampa Bay's Ronde Barber (213 consecutive starts) and Washington's London Fletcher (197). A 12-year veteran, Smith hasn't missed a start since early in his rookie season with Cincinnati.
Jean Francois is ready if Smith misses this one.
"Just another start," Jean Francois said. "I'm not going to be sitting on the bench, not able to get in the game. So the preparation this week was a little different. I'll see a lot more action."
Jean Francois ended up playing 48 of San Francisco's 92 defensive plays last week in a 41-34 victory over New England. Smith left that game early in the third quarter, got his elbow taped in the locker room and returned to the San Francisco sideline. But he never went back in the game.
The Patriots scored 28 straight points with Smith on the sideline to erase a 31-3 San Francisco lead, rolling to touchdowns on consecutive drives of 73, 86, 66 and 92 yards.
But Jean Francois and left tackle Ray McDonald both came up with big plays as the 49ers stopped New England on its next two offensive series late in the fourth quarter after San Francisco regained the lead.
Jean Francois and McDonald had back-to-back sacks of quarterback Tom Brady to halt New England's momentum on the first of those series. Jean Francois beat New England left tackle Nate Solder on third down for his second career sack, forcing New England to punt for the first time since the second quarter.