A Stanley Cup winner known for his versatility, physical play, energy, defense and solid faceoff work, Richardson played four seasons in the Ontario Hockey League with Owen Sound before turning pro.
Richardson scored 27 goals for Owen Sound in 2002-03 and was selected by the Avalanche that year in the fifth round (No. 163) of the NHL Draft. He had his best junior season in 2004-05, when he had 41 goals and 97 points, finishing third in the league in each category. He was runner-up for the league's Most Outstanding Player award.