The Denver Broncos (1-0) meet the San Francisco 49ers (0-1) Sunday afternoon (4 ET) in Levi’s Stadium. 1. That Brandon Marshall: It will be the first glimpse at the Broncos' first attempt to see what they will do without linebacker Danny Trevathan in the lineup. Trevathan, who was the team's leading tackler in 2013, is expected to miss up to eight weeks as he recovers from a fracture at the top of his tibia. Marshall has worked in Trevathan's weak-side spot this week.via - NFL Nation