The future Hall of Fame? quarterback is calling it a careerWhile the world awaits what's expected to be a retirement decision from Drew Brees, another NFL legend has opted to make his decision quickly. Philip Rivers, 39, recently noted he'd consider retirement but was also open to returning to the Indianapolis Colts for a second year, if they'd have him. Just over one week after being eliminated from the playoffs at the hands of the Buffalo Bills in an AFC wild-card game, Rivers is instead going to hang up his cleats -- he told The San Diego Union-Tribune -- ending...