Tempers reportedly flared on the Raiders’ sideline between Michael Crabtree and Donald Penn with a member of the coaching staff needing to intervene.

Late in the second quarter of Thursday’s game between the Raiders and Chiefs, CBS’ Tracy Wolfson reported frustration boiled over that resulted in Crabtree and Penn pushing and shoving each other on the sideline. Wolfson added offensive line coach Mike Tice stepped in to restore order.