Six of the 21 Championship Series were extended to the full three matches, and three athletes rallied back from one match down with two straight wins, at an action-packed finals round at the World Team Trials in Saint Paul, Minn., June 23.    The three athletes who rebounded from an opening loss to take their series were men's freestyler Cael Sanderson (Ames, Iowa/Sunkist Kids), men's Greco-Roman wrestler Jim Gruenwald (Colorado Springs, Colo./Sunkist Kids) and women's freestyle wrestler Tina George-Wilson (Colorado Springs, Colo./Sunkist Kids).    The 2002 U.S. Nationals champion faced the Challenge Tournament Champion from Saturday, with the series winner claiming a spot on the 2002 U.S. World Team. The men's freestyle team will compete in Iran in September, the women's freestyle team in Greece in November and the men's Greco-Roman team in Russia in September.    Sanderson dropped his first match of the series at 84 kg/185 pounds  to Challenge Tournament winner Lee Fullhart (Iowa City, Iowa/Gator WC) , 3-2. Fullhart won the match on a two-point move late in the bout. It was his first loss to an American since the 2000 Olympic Trials in Dallas, Texas. Sanderson, who captivated the nation by completing an undefeated college career with four NCAA titles, needed two strong matches in the second session to qualify for the World Championships.    Sanderson opened up his takedown offense, and beat Fullhart 7-1 in the second match and 6-1 in the third match. He will be competing in his first World Championships, after giving up his chance to wrestle in the 2001 World Championships when it was moved from New York City to Bulgaria and held during the college season.    In the first match at 60 kg/132 lbs. in Greco-Roman, Gruenwald was defeated by 2001 U.S. Nationals champion Glenn Nieradka (Colorado Springs, Colo./U.S. Army), 4-1. In the second session, Gruenwald shut down Nieradka's attack, and reeled off 3-0 and 4-0 wins to claim the series. Gruenwald will compete on his third straight U.S. team, after competing in the 2000 Olympics and the 2001 World Championships.    George-Wilson battled 2001 World silver medalist Stephanie Murata (Minden, Nev./Sunkist Kids) in a battle of tested veterans at 55 kg/121 lbs. Murata moved up in weight to challenge George-Wilson, a teammate on many U.S. teams. Murata won the first game of the series, 5-4. However, in the evening session, in a pair of exciting and close bouts, George-Wilson responded with 6-4 and 8-5 wins for the series victory.    The three athletes that won their first match, but were extended to three matches before winning, were men's freestyle star Eric Guerrero (Stillwater, Okla./Gator WC) at 60 kg/132 lbs., women's wrestler Patricia Miranda (Stanford, Calif./Dave Schultz WC) at 48 kg/105.5 lbs. and young Greco-Roman talent Brad Vering (Cedar Falls, Iowa/Sunkist Kids) at 84 kg/185 lbs.    Guerrero made his third U.S. World team, and controlled the situation with a 4-2 win over Jesus Wilson (Fayette, Iowa/Minnesota Storm), 4-2. In the second match, it was Wilson who claimed a 2-1 overtime victory. In the deciding third match, a highly charged and closely contested bout, Guerrero held off a late charge by Wilson for a deciding 5-4 win.    Wilson, a naturalized U.S. citizen from Cuba, was a World placewinner for Cuba in 1993, then defected to the USA in 1994. He received his citizenship in time for last year's World Team Trials, and has made his first major impact on the U.S. scene.    Miranda, a 2000 World silver medalist, entered the event as the U.S. Nationals champion at 48 kg/105.5 lbs. She jumped to a 1-0 lead in the series by pinning Clarissa Chun (Kapolei, Hawaii/Wilson's Angels), in 1:55. However, Chun rebounded for a 5-4 win in the second match. With the team spot on the line, Miranda closed the door with a 6-0 victory.    Vering, who qualified for the finals by winning the Challenge Tournament, opened the series with a 6-0 win over U.S. Nationals champion Ethan Bosch (Colorado Springs, Colo./New York AC). Included in Vering's attack was an exciting five-point throw. Bosch, who had beaten Vering in the U.S. Nationals finals, kept the series going with a 2-0 overtime win in bout two. In the third and deciding bout, Vering was in control for a 3-0 win, and a spot on his first U.S. World Team.    Winners of the men's freestyle tournament were five athletes who have competed at past World Championships. Joining Guerrero as past World Team members who qualified this year were Stephen Abas (Fresno, Calif./Sunkist Kids) at 55 kg/121 lbs., Chris Bono (Gilbert, Iowa/Sunkist Kids) at 66 kg/145.5 lbs., Joe Williams, Iowa City, Iowa (Sunkist Kids) at 74 kg/163 lbs. and Kerry McCoy (State College, Pa./New York AC) at 120 kg/264.5 lbs.    Abas, a member of the 2001 U.S. World Team, qualified for the Championship Series through the Challenge Tournament. He did not compete at the U.S. Nationals this year. Abas defeated 2002 U.S. Nationals champion Teague Moore (Norman, Okla./Gator WC), 4-2 and 3-2 to make his second straight U.S. team.    Bono, also on the 2001 U.S. World Team, captured the Challenge Tournament on Saturday, then won two straight matches over Jamill Kelly (Stillwater, Okla./Gator WC), 3-1 and 3-1 in overtime. Kelly had upset Bono in the 2002 U.S. Nationals semifinals.     Bono's victory in the Championship Series did not guarantee him a spot on the U.S. team, however. He has qualified a Special Wrestle-off at a date and location to be determined against 2002 U.S. Nationals champion Bill Zadick (Iowa City, Iowa/Hawkeye WC), who extended his finals series due to injury. Only the U.S. Nationals champion can extend a finals series, and Zadick chose this option on Thursday.    Williams, a 2001 World bronze medalist, has made his third U.S. World team, sweeping Casey Cunningham (Mt. Pleasant, Mich./Sunkist Kids), by dominant 5-1 and 7-5 margins. Williams placed fourth in his other World appearance in 1999.    McCoy will represent the USA for the fourth time on the World level, including his fifth place finish at the 2000 Olympic Games. He had little trouble sweeping the series against 2002 NCAA Champion Tommy Rowlands (Columbus, Ohio/Dave Schultz WC), with a  10-0 technical fall and a 7-2 decision. McCoy, who was also fourth in the World Championships twice, will seek his first World medal.    Joining Sanderson as another team member who will be competing in his first World Championships is Tim Hartung (Minneapolis, Minn./Minnesota Storm)  at 96 kg/211.5 pounds. Hartung, a crowd favorite in Minnesota, was dominant in 12-5 and 11-4 wins over Chad Lamer (Iowa City, Iowa/Hawkeye WC), 11-4.    In men's Greco-Roman, another local hero, 1996 Olympic silver medalist Brandon Paulson, Anoka, Minn. (Minnesota Storm) swept the finals at 55 kg/121 lbs. Paulson stopped Lindsay Durlacher (Evanston, Ill./Wildcat WC), 6-0 and 8-1. Paulson won a silver medal at the 2001 World Championships.    The Greco-Roman team will be very experienced, as five of the seven team members have past World Championships experience. Those on past U.S. teams included Gruenwald, Paulson and  Kevin Bracken (Colorado Springs, Colo./New York AC) at 66 kg/145.5 lbs, Garrett Lowney (Appleton, Wis./Minnesota Storm) at 96 kg/211.5 pounds and Dremiel Byers (Colorado Springs, Colo./U.S. Army) at 120 kg/264.5 lbs.    Bracken was dominant in two straight wins over surprise finalist James Shillow (Fredricksburg, Va./U.S. Marine Corps), 7-0 and 5-0. Bracken was a placewinner in both the 2000 Olympics and the 2001 World Championships, but seeks his first World medal.    Lowney did not have to wrestle to earn his spot on the U.S. team. Challenge Tournament winner Justin Ruiz (Taylorsville, Utah/Dave Schultz WC) chose not to compete in the finals series, and forfeited his bouts. A Mormon, Ruiz does not compete on Sunday for religious reasons.    Byers qualified for his second U.S. World team with a solid two match sweep over Corey Farkas (Colorado Springs, Colo./U.S. Air Force). Byers won both bouts  3-0, the first in overtime and the second in regulation. Byers placed sixth in the 1999 World Championships, his only other appearance.    Alo