Weaver (oblique) is inactive for Sunday's game against the Rams, Darren Urban of the Cardinals' official site reports.
Weaver was a limited participant in all three practices leading up to Week 2, but he wasn't able to progress enough through his oblique injury to suit up Sunday. Weaver also did not play Week 1 and his next opportunity to suit up will be Week 3 against the Lions on Sept. 22.