The Facts: With their backfield still under the microscope, the Cowboys used Tuesday to add another receiver. Dallas has signed Jenkins, a former 49ers first-round pick, the team announced.

Diehards Line: The 25-year-old wideout worked out for the Cowboys last week. ... Jenkins appeared in just three games as a rookie in 2012 before the Niners traded him to the Chiefs the following offseason. The former Illinois star hauled in just 17 catches for 223 yards in 25 games for Kansas City over the past two campaigns. As NFL.com's Marc Sessler suggests, Jenkins is no threat to steal snaps away from the starting trio of Dez Bryant, Terrance Williams and Cole Beasley. The fourth-year pass-catcher will fight for a roster spot on a depth chart that also includes rookie Devin Street and not much else. The Cowboys cut Chris Boyd to make room for Jenkins.