AUTO RACING—Albuquerque's AL UNSER followed up his Indy 500 victory with a narrow win over teammate Joe Leonard in the Rex Mays 300 at Milwaukee.
BASKETBALL—If BILL SHARMAN bought a round-trip ticket when the Stars moved from Los Angeles to Utah, he may now be able to use the other half. Sharman is a prime candidate to coach the Los Angeles Lakers, replacing JOE MULLANEY, who was removed. The Stars, ABA champions, have filed suit against Sharman for $5 million, alleging that he would break his contract.
BOATING—To end an America's Cup impasse, the New York Yacht Club named the Royal Thames Yacht Club of England as challenger-of-record for the next series and postponed it from 1973 to 1974. The Britons will conduct elimination trials off Newport between their contender and one 12-meter each from France, Australia and Canada.
BOXING—JOS� NAPOLES scored an eighth-round knockout over welterweight champion Billy Backus to regain his world title (page 22).
Light heavyweight VICENTE PAUL RONDON of Venezuela knocked out Piero del Papa of Italy at 2:30 of the first round of a 15-round bout in Caracas, Venezuela to retain the World Boxing Association version of the championship.
CHESS—BOBBY FISCHER of the U.S. completed his series with Mark Taimanov of the Soviet Union by taking his sixth straight game. Fischer now meets BENT LARSEN of Denmark, who earlier defeated Wolfgang Uhlmann of East Germany 5�-3�. In other quarter-finals leading to a world title challenge, TIGRAN PETROSIAN of the U.S.S.R. had already defeated Robert H�bner of West Germany when H�bner defaulted while trailing 4-3, and Russia's VIKTOR KORCHNOI beat his countryman Yefim Geller 5�-2�.
GOLF—GARDNER DICKINSON, 43-year-old tour veteran, survived a sudden-death playoff in the hot, hilly and humid Atlanta Golf Classic to take the $25,000 first prize from Jack Nicklaus. Nicklaus and Dickinson were tied at 13 under par at the end of regulation play, and Nicklaus bogeyed the first extra hole by missing a 2�-foot putt. Dickinson parred the hole.
Kathy Whitworth won her fourth Lady Carling Open with a nine-under par 210, six strokes ahead of Jane Blalock on the Pine Ridge municipal course in Baltimore. Margie Masters and Mary Mills tied for third. It was the 57th career victory for Miss Whitworth, the all-time women's money winner. She carded three sub-par rounds.
Steve Melnyk, former U.S. amateur champion, defeated Jim Simons 3 and 2 in the 36-hole final to become the first American since 1967 to win the British Amateur, at Carnoustie, Scotland (page 65).
GYMNASTICS—Favorite YOSHIAKI TAKEI, of Japan, twice an AAU all-round champion, took only one first place—in the parallel bars—at the World Cup championships at Miami Beach for a poor seventh place. Swiss national team captain PETER ROHNER won the overall men's title. KATHY RIGBY of Long Beach, Calif. won gold medals in balance-beam, vaulting, floor exercise and uneven parallel bars, for an unprecedented total of 38.35 of a possible 40.