Kansas City, Mo. -- Court hearings for New York Yankees baseball players Don Mattingly and Dale Berra -- arrested on charges of indecent conduct at a shopping area during the team's May visit -- have been rescheduled for July 23. The two were arrested on separate occasions for allegedly urinating in public. FIELD HOCKEY

National Sports Festival -- Greg Pereira, 20, and his brother Caz Pereira, 19, of Rockville have been chosen to the East team for the 1985 Festival. BASEBALL

Houston Astros -- Placed RHP Bill Dawley (1-2, two saves, 5.02 ERA) on 15-day disabled list, tendinitis, right elbow; called up RHP Mark Knudson (8-4, 3.09 ERA) from AAA Tucson. Texas Rangers -- Signed eight-year veteran OF Ellis Valentine to contract with Class AAA Oklahoma City. He last played in the majors in 1983, when he batted .240 with 13 home runs and 43 RBI in 86 games with the California Angels. He was on the disabled list all of 1984 and was released by the Angels last winter. He has a career major league average of .278 with 121 homers and 470 RBI in 883 games. Japan-U.S. Collegiate Championship -- Tom Howard of Ball State University hit a three-run home run to pace the United States to a 6-5 victory over Japan in Tokyo. Japan won the series, four games to three. Joann Barrett, 34, shot through the hand at Yankee Stadium July 4, is in good condition at a New York hospital and is expected to be released today. Barrett, who is pregnant, was shot by an unknown assailant as she sat in the stands at the Twins-Yankees game with her husband and two young sons. BASKETBALL

William Jones Cup -- In the men's tournament in Taipei, Taiwan, the United States scored an 81-56 victory over Taiwan's Kwanghwa squad to advance into the winners' round with the Philippines, Canada, South Korea, Italy, Uruguay, Sweden and the Taiwan national team. LOCALLY

Bobby Ross, football coach at the University of Maryland, will speak to the Greenbelt Lions Club Monday at 7:15 p.m. at the Greenbelt American Legion post, 6900 Greenbelt Road; open to the public. COLLEGES

Maryland -- Pentathlete and heptathlete Linda Felicia Spenst has been awarded a $2,000 scholarship by the NCAA Postgraduate Scholarship Committee. Spenst won all-America and all-ACC honors in the penathlon and heptathlon.