Nationals outfielder Bryce Harper has been in camp for two days, but one could never tell he had left knee surgery this past offseason. On Tuesday, he took hitting practice at Space Coast Stadium without any problems.

On Wednesday, after taking his physical and watching the United States' Olympic hockey game in the clubhouse, Harper spoke to the local media and declared his knee was 100 percent. He is no longer in rehab mode and expects to participate in full-squad workouts Thursday.

"I feel good. I have no problem with it at all, no soreness. It doesn't hurt at all," Harper said. "I feel good swinging and running. I'm doing cuts and things like that. I feel fine. My mobility is good. I feel like my strength is there, too."

Harper hurt the knee on May 13 of last season when he slammed into the right-field wall at Dodger Stadium. Because of the injury, he played just 118 games last year. Harper admitted he is sick of talking about it. Every time he went into therapy this offseason, somebody would crack, "Don't run into a wall."

How did Harper respond to the crack?

"Yeah, dummy, you don't walk across the street when there are cars coming," he said sarcastically.

"It's over," Harper said about the incident. "Babe Ruth ran into the wall in D.C. in 1920-something and knocked himself out, so I'm in pretty good company right there. He had a good career."

Harper did everything he could to be ready for the 2014 season. In the past, he was used to running hills and in stadiums, but he couldn't do that this offseason because of the knee surgery. Instead, he rode a bike -- stationary and ordinary -- for two months before he could even think about running.

Then by Jan. 1, Harper was able to push it to the limit. He started lifting weights with his legs. He lifted as much as 500 pounds.