Texans star receiver Andre Johnson said Monday that he will be out for three to four weeks after arthroscopic surgery on his left knee.
The 30-year-old Johnson sat out Houston's first organized team practice, two weeks after the procedure.
"Right now, everything is just focusing on making sure everything is right before I get back out here," Johnson said. "Nothing to panic about."
Johnson said fluid continued to develop around the knee, and he and the team decided to treat it with surgery.
"We thought it had kind of calmed down," Johnson said. "I was back out doing offseason workouts, just running around and stuff, and it just kind of swelled back up. We felt like that was the best thing to do, get the knee scoped, get it fixed."
Johnson said the knee injury won't delay his preparations for training camp later this summer.
First Kenny Britt gets his knee scoped and now Johnson. Arthroscopic surgery on the knee is usually done to clean up excess cartilage, which can cause both pain and swelling. Provided Johnson can get back on the field in a month or so, this shouldn't be any great concern.