Steelers’ Polamalu won’t play Thurs.
Troy Polamalu’s comeback turned out to be just a cameo, and there’s no telling when the Pittsburgh Steelers safety will be back on the field. One thing’s for certain, it won’t be on Thursday when the Steelers (2-2) travel to reeling Tennessee (1-4). Coach Mike Tomlin ruled Polamalu out of the lineup this week after…