Getty Images Cleveland Browns quarterback Joe Flacco. Joe Flacco will watch from the sideline in street clothes when Cleveland Browns rookie Shedeur Sanders gets his first taste of NFL action on Friday. Sanders is set to get the starting nod when the Browns take the field for their preseason opener against the Carolina Panthers . Flacco, Kenny Pickett and rookie Dillon Gabriel will not play, per head coach Kevin Stefanski. Pickett and Gabriel are nursing nagging injuries and the Browns don’t