Ronald Harper Sr. is an American former professional basketball player. He played for four teams in the National Basketball Association (NBA) between 1986 and 2001 and is a five-time NBA champion.

The 1989 NBA playoffs was the postseason tournament of the National Basketball Association's 1988–89 season. The tournament concluded with the Eastern Conference champion Detroit Pistons defeating the Western Conference champion Los Angeles Lakers 4 games to 0 in the NBA Finals. Joe Dumars was named NBA Finals MVP. The Pistons had one of the most dominant playoff runs in NBA history, finishing 15–2 with their only losses to the Chicago Bulls in the Eastern Conference Finals. This NBA playoffs also holds the record for the most sweeps in an entire NBA playoffs with 9 out of 15 series being decided in just 3 or 4 games.