Justin Mapp 's signing with Sporting Kansas City was a momentous event in the league 's 20 - year history that happened entirely too simply .
That 's the disappointing thing about the introduction of free agency to MLS , in the end .
Justin Mapp 's signing with Sporting Kansas City was a momentous event in the MLS 's 20 - year history that happened entirely too simply .
That 's the disappointing thing about the introduction of free agency to MLS , in the end .