Injury, QB questions loom over 49ers-Broncos joint practice (Yahoo Sports)

A couple of fights broke out, the Broncos suffered another key injury and ongoing quarterback questions for Denver and the San Francisco 49ers marked the joint practice Wednesday ahead of the exhibition game Saturday night between the teams. Broncos defensive end Derek Wolfe sustained a left ankle injury while pass rushing during 11-on-11 scrimmaging against the 49ers' first-team offense. Coach Gary Kubiak said after practice that Wolfe rolled his ankle.