ESPN will air the World Championships of Freestyle Wrestling, held in Madison Square Garden in New York City, on October 22 and 23.    A one-hour show with coverage of the gold-medal round will be broadcast on ESPN2.    The first airing on ESPN2 will be on Wednesday, October 22, starting at 5:00 p.m. Eastern Time.    The second airing on ESPN2 will be on Thursday, October 23, starting at 12:00 noon Eastern Time.    The tournament will feature the world's best men and women freestyle wrestlers, competing in the world's most famous sports arena, Madison Square Garden. The event will be held September 12-14, and the show will be aired on a tape-delayed basis.    The broadcast team for the show will feature play-by-play announcer Russ Hellickson, the head wrestling coach at Ohio State, who has announced the wrestling competition at every Olympic Games since the 1984 Los Angeles Olympics. He will be joined by color commentators Kendall Cross, a 1996 Olympic gold medallists in freestyle wrestling, and sports broadcaster Joe Miller.    The United States is expected to have a strong team in both the men's and women's divisions. This competition will also serve as a qualifying event for the 2004 Athens Olympic Games. There are currently over 70 nations expected to participate with almost 500 competitors.    ESPN has aired a number of major international amateur wrestling events in recent years, including the World Cup, USA vs. Russia duals, USA vs. Iran duals and the U.S. Nationals.