Larocque was drafted in the first round, 16th overall by the Tampa Bay Lightning in 1996. He managed to play five NHL games for the Lightning during the 1998–99 NHL season, scoring no points with 16 penalty minutes. He spent the rest of that season in the International Hockey League with the Cleveland Lumberjacks before playing two seasons with the Detroit Vipers of the same league. After the IHL folded, he was signed by the Buffalo Sabres but was assigned to the American Hockey League with the Rochester Americans and never saw any ice time with the Sabres.