Ravens middle linebacker Ray Lewis practiced on Friday for the first time since injuring his back nearly three weeks ago, and his availability for Sunday is considered a game-time decision. During the media viewing of yesterday's non-contact workout, Lewis showed no hesitancy in any of the drills, whether it was running, backpedaling or catching a pass from coach Brian Billick. Asked after practice whether he intends to play against the Pittsburgh Steelers tomorrow, Lewis said, "I don't know yet."