Tartt (shoulder) was a limited participant in Thursday's practice, Nick Wagoner of ESPN.com reports.
Tartt has logged a pair of limited practices to begin the week while dealing with a shoulder issue that he picked up in the 49ers' Week 17 win over the Texans. He has battled through a number of lower body injuries throughout the campaign but has still suited up for 13 games. Assuming he can either log another limited practice or upgrade to full participation Friday, Tartt should have a strong possibility of suiting up for Sunday's showdown with the Rams.