Early in Brian Propp's hockey career, he had the good fortune to skate next to centremen who could harmonize with Propp's natural instincts. While skating for the Brandon Wheat Kings in 1977-78, he had junior "phenom" Bill Derlago at his side. The combination allowed Propp to lead the league in points with 182. The following season, Laurie Boschman replaced Derlago and raised Propp's game even higher. He again led the league in scoring with a whopping 232 points in 93 games played.
The Philadelphia Flyers in the 1979 Amateur Draft then snapped him up. He joined the club the following season and found himself on a line with Bobby Clarke and Reggie Leach. The trio clicked as Propp established himself as a complete player who could work the corners, check opponents, make creative passes, and score goals.
From there, the foundation was set as Propp became a solid fixture on the Flyers forward lines for a total of ten and a half seasons. During that time, his team made it to the Stanley Cup finals three times, he made four trips to the All-Star game, and, during regular season play, his consistent work ethic brought home a notable percentage of game-winning goals.
By 1990, having aged and slowed a step, Propp was traded to the Boston Bruins where he played only 14 games before signing as a free agent with the Minnesota North Stars, where he performed for just over two seasons. He then went to play in Switzerland for a year and then rounded out his career with the Hartford Whalers in 1993-94.