06:19 PM ET 06.13 | I always enjoy my brief chats with Pittsburgh Steelers safety Troy Polamalu, who always gives a different perspective on questions. When I saw reporters talking to him Wednesday, I approached him to ask how his health now compares to last year. "If I had a time machine, I could explain how I felt back then," Polamalu said. Since Polamalu couldn't summon H.G. Wells, he went on to say, "Standing right here, I feel good. But it's really irrelevant how I feel now. What's important is how I feel 16 games through the football season." Staying healthy for an entire season has been a challenge for seven-time Pro Bowl player. Over the past seven seasons, Polamalu has only played in 16 games twice (2008 and 2011). He's missed 22 games over the past four seasons. A calf injury derailed Polamalu's season last year.