The slam dunk contest has ever since been a major part of the NBA's All Star Weekend (with the exception of 1998 and 1999). Pressing and trapping defenses, rarely used in the slower-tempo NBA, were common in the ABA, and after the merger began to play a larger role in the NBA. Billy Cunningham, Philadelphia 76ers star: "When the Knicks were pressing and shooting 3-pointers and all of that under Rick Pitino, people acted as if that was something new. Hey, half the teams in the ABA played like that". Hubie Brown, former head coach of the Kentucky Colonels, Atlanta Hawks, New York Knicks and Memphis Grizzlies: "We (the ABA) were ahead of the NBA in so many different ways. We had the 3-point play. The NBA said it was a gimmick; now it's one of the most exciting parts of the pro game... About everything we did in the ABA they do now in the NBA except they didn't take our red, white and blue ball". Eventually, the NBA revived the ABA's red, white and blue ball as the "Money Ball" in the NBA's Three-Point Contest. The ABA had a far faster pace than the NBA, and this carried over into the NBA after the merger; today's NBA game is largely derived from the ABA. Longtime Denver Nuggets head coach and ABA alum Doug Moe, who also coached the Philadelphia 76ers, has commented, "The NBA now plays our (the ABA's) kind of basketball". Prior to the ABA, the NBA did not allow college underclassmen to enter the league. In 1969 the ABA's Denver Rockets signed Spencer Haywood, a sophomore star at the University of Detroit who had played on the 1968 United States Olympic basketball team. The NCAA sued, but Haywood and the ABA prevailed. Julius Erving and George Gervin also joined the ABA's Virginia Squires as underclassmen, as did Jim Chones going from Marquette University to the New York Nets, George McGinnis from Indiana University to the Indiana Pacers and Ralph Simpson from Michigan State to the Denver Rockets. Moses Malone joined the ABA's Utah Stars straight out of high school. Eventually after the merger the NBA followed suit and the drafting of college underclassmen became common in that league and high school players were also selected in subsequent NBA drafts.