PITTSBURGH -- Steelers safety Troy Polamalu and linebacker James Harrison did not practice Friday and are questionable for Sunday's game against the Jets.

Neither Polamalu, who is nursing a strained right calf, nor Harrison, who is recovering from a minor procedure on his left knee, practiced this week. Steelers coach Mike Tomlin typically does not let players who did not participate during the week play in the game.

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Harrison, who hasn't suited up for a game since a playoff loss to Denver last January, said he "felt great" but allowed there's a risk in coming back too quickly. The knee has been bothering Harrison since minicamp and he had arthroscopic surgery Aug. 15.

Polamalu has made 18 straight regular-season starts dating to 2010. Running back Rashard Mendenhall, who is recovering from a torn ACL in his right knee suffered in the regular-season finale against Cleveland, practiced all week but has been listed as doubtful.