A Roundup Of The Week Oct. 5-11

POLO—The WILSON RANCH of Iraan, Texas defeated Broad Acres Polo Club of Norman, Okla. 7-5 to take the national 12-goal championships at Midland, Texas.

TENNIS—The UNITED STATES won the Davis Cup for the 23rd time in the 71-year history of the competition by beating Rumania in Charlotte, N.C. (page 28). The victory moved the U.S. one ahead of Australia for alltime cup victories.

MILEPOSTS—FIRED: JERRY WILLIAMS, 48, head coach of the Philadelphia Eagles, to be replaced by Assistant Coach Ed Khayat for the remainder of the season. Williams, a former Eagle back, returned to the club in 1969 after coaching in the Canadian Football League, and had a 7-22-2 record, including three lopsided losses this season.

FIRED: California Angel Manager LEFTY PHILLIPS, 52, and his four coaches, just two days after Phillips' chief problem, Outfielder ALEX JOHNSON, was traded to the Cleveland Indians, along with Catcher JERRY MOSES, for Outfielders VADA PINSON and FRANK BAKER and Pitcher ALAN FOSTER. Johnson, suspended late in June for failure to hustle, and Moses both had voiced discontent with the Angels, while Pinson charged that the Indians failed to live up to salary promises in 1971.

NAMED: As commissioner of the Big Eight Conference, CHARLES NEINAS, 39, former assistant executive director of the NCAA.

REALIGNED: The American League's Eastern Division, to include the MILWAUKEE BREWERS, in order to accommodate the Washington Senators' move to Dallas-Fort Worth, a new Western Division franchise.

SIGNED: By the ABA Utah Stars, JIMMY JONES, formerly an All-Star guard for the Memphis Pros. Although he was the league's 15th ranked scorer (19.5 average) and also ranked third in assists last season, Jones became a free agent when the Pros neglected to pick up his option within the required time limit.

TRADED: In 10-player deal involving the Boston Red Sox and the Milwaukee Brewers, Pitchers JIM LONBORG and KEN BRETT, Outfielders BILLY CONIGLIARO and JOE LAHOUD, First Baseman GEORGE SCOTT and Catcher DON PAVLETICH of the Red Sox to the Brewers for Outfielders TOMMY HARPER and PAT SKRABLE and Pitchers LEW KRAUSSE and MARTY PATTIN.