Al-Shaair (elbow) is doubtful for Sunday's game against Atlanta, Nick Wagoner of ESPN.com reports.
Al-Shaair picked up the injury in Sunday's Week 14 win over Cincinnati and has not practiced at all throughout the week. His absence would leave a significant hole in the 49ers' defense, as he's racked up 96 total tackles with five passes defended, 1.5 sacks and one interception across 12 games.