Colts trade first-round pick for Trent Richardson

In a bold and surprising move, the Colts announced Wednesday the acquisition of Browns running back Trent Richardson for a 2014 first-round pick. The Colts lost starting running back Vick Ballard to a season-ending knee injury last week. The 22-year-old Richardson was the No. 3 overall pick in the 2012 draft. As a rookie, he…