The Pittsburgh Steelers intend to remain cautious with left guard Chris Kemoeatu who is dealing with a pretty serious knee injury and has started camp on the pup list. “I probably should have just went to the doctor (when he first noticed swelling), but I thought it was just fluid, so I kind of didn’t pay any attention to it,” said Kemoeatu via Tribune-Review. “I just iced it, and then it got to a point where I couldn’t walk on it because it was so swollen.” Rookie Keith Williams has been pegged as the 2nd team left guard behind Kemoeatu on the Steelers official depth chart.