Danario Alexander's left knee has given him a lifetime of challenges. Now the other knee presents what perhaps will be his biggest obstacle yet.
Alexander emerged as an impact player in the back end of last season, finishing with seven touchdowns while averaging nearly 18 yards per catch. He was slotted to be the Chargers' No. 1 wide receiver this season.
Brown was putting on a show in camp last year before a leg injury wiped out a promising season. Unfortunately, Alexander knows the feeling all too well.