Johnson had right shoulder surgery in March to repair a torn labrum that he played through last season. But he believes that shoulder will be healed and ready for the Bears' scheduled start of training camp in July.
"Not concerned at all," Johnson said on the McNeil & Parkins Show on Monday afternoon. "My surgery went really well. I'm doing really good. I'm going to be ready to go. I'm just training to be the best I can be when training camp comes.
"I'm not sure how close I am to 100 percent. I'm just making progress. But I will be 100 percent when need be."
"I don't think there's any doubt that had that history of shoulder surgeries not been there, he would've been in the top 15 in my opinion," Whittingham said.
"I think that's the kind of ability that he has."