Mark made an impact in 1989-90 when he was one of the NHL's best rookies. He ranked second in goals, fourth in assists and third in points among all first-year players and he became one of the Penguins' most dependable players in the second half of the season when superstar Mario Lemieux was sidelined with an injury. Mark joined a line with John Cullen and Troy Loney and had a 10-game point-scoring streak that helped make Pittsburgh a contender. Mark's plus-6 rating tied him for the lead on the Penguins in 1989-90. An elusive skater who handles the puck well, he led the Western Hockey League with 93 assists in 1987-88 while playing for Kamloops.