The Cleveland Browns have decided not to name a starting quarterback ahead of Sunday's game against the Jacksonville Jaguars. The Browns will start either veteran Joe Flacco or rookie Dorian Thompson-Robinson, who is out of concussion protocol and practiced Friday. Amari Cooper, the receiver, is in the concussion protocol after getting hurt Sunday against the Rams. Flacco started the last game and completed 23 of 44 passes for 254 yards, with two touchdown passes and one interception. Thompson-Robinson has made three starts this season, going 1-2 in them. The Browns have started four quarterbacks this season.