Steelers coach Mike Tomlin won't rule out rookie center Maurkice Pouncey for Sunday's Super Bowl. Pouncey suffered a high left ankle sprain in the AFC Championship Game and has been on crutches. "We've been very aggressive in terms of treating it," Tomlin said. "We've even been putting it in hard casts and so forth. Just trying to do everything in our power to give him the best opportunity to participate. I don't know what his chances are at this point."