The fun wouldn't be complete unless we visited, for a bonus, with Sheehy and Biron. Beginning with the 1996-97 season, the NHL decreed that Nos. 0 and 00 could no longer be worn since they confused the League's digital database; today, only No. 1 through No. 98 are allowed, No. 99 retired for Gretzky at the NHL's 50th All-Star Game in 2000 following The Great One's retirement.