The Bears made the following roster moves Wednesday:
Nall made his season debut in Sunday's win over the Raiders, playing three snaps on offense and 17 on special teams. He originally joined the Bears in 2019 as an undrafted free agent from Oregon State. He has appeared in 26 career games, all as a reserve, rushing for eight yards on five carries and catching five passes for 18 yards.
Kamara signed with the Bears in May as an undrafted rookie free agent from Stony Brook. He spent the first five weeks of the season on the practice squad.
Ifedi sustained a knee injury late in the first half of Sunday's game in Las Vegas and was replaced by Elijah Wilkinson. Ifedi has started all 21 games since signing with the Bears last year.
Attaochu suffered a pectoral injury against the Raiders. He signed with the Bears in March after spending his first seven NFL seasons with the Chargers (2014-17), Jets (2018) and Broncos (2019-20). Appearing in the first five games, all as a reserve, he recorded two tackles.