 He spent the 2010–11 season playing Junior "A" hockey for the St. Michael's Buzzers in the Ontario Junior Hockey League (OJHL).Brown joined the Otters for the 2011–12 season and led the team in points (53), goals (25) and assists (28), and was named to the OHL's All-Rookie Team.However, he recorded a plus-minus of –72, a jarring statistic that was also the worst plus-minus of any player in the OHL (second-worst was teammate Kris Grant with –61).