Montgomery-Rockville -- RB Marco Mattocks was named Central Atlantic Conference offensive player of week. He ran for 108 yards, two touchdowns in 21-16 win over Harford.

Howard -- QB Lee DeBose was named Mid-Eastern Athletic Conference rookie of week. He passed for two touchdowns, 162 yards, and ran for 33 more, in 35-26 win over Morehouse.

ACC -- Named North Carolina DT Reubin Davis, N.C. State LB Kelvin Crooms defensive players of week.

North Carolina -- SE Eric Streater (24 catches for 424 yards, four touchdowns) is out for season with broken shoulder blade. He will be replaced by Quint Smith, sophomore from Alexandria, Va.

Utah State -- Football Coach Chris Pella resigned effective end of this season. BASEBALL

Chicago White Sox -- Hired Willie Horton as batting instructor.

Cleveland Indians -- Promoted to 40-player roster: P Craig Pippin, P Reggie Ritter, C Kevin Buckley, IF Dan Rohn, OF Jim Weaver from Class AAA; P Andy Allanson, P Scott Bailes, OF Dave Clark from Class AA; P Rich Yett, who played last season on Minnesota Twins' Class AAA team.

Pittsburgh Pirates -- Recalled RHP Stan Fansler, RHP Orlando Lind from Class AAA; assigned RHP Jeff Zaske, RHP Cecil Espy to Class AAA. HORSE RACING

Keeneland Sale -- Princess Rooney, 5-year-old stakes-winning mare in foal to Danzig, was sold for $5.5 million to George Aubin's Wichita Equine of Houston. The champion handicap mare of 1984, Princess Rooney totaled 17 wins in 21 starts and $1,343,339 earnings. Estrapade, who won $400,000 Yellow Ribbon Stakes Sunday, was bought by A.E. Paulson of Savannah, Ga., for $4.5 million. LOCALLY

Mickey Vernon, Chuck Hinton and Fred Valentine will be among former Washington Senators at a baseball card show at 10:30 a.m. Saturday at Twin Bridges Marriott in Arlington. Barry Shetrone and Tom Brown will also appear and sign autographs. Admission is $1. BASKETBALL

New York Knicks -- Signed F Louis Orr to multiyear contract; waived G Butch Carter. HOCKEY

New York Rangers -- Recalled C Mike Rogers, D/LW Steve Richmond from AHL New Haven. OBITUARY

Dick Fullam and Mike Poppa were killed when 38-foot powerboat they were racing at 80 to 90 mph exploded. Fullam, 47, of West Springfield, Mass., and crew member Poppa, 39, of Sarasota, Fla., were competing in World Offshore Powerboat Championships in Key West, Fla. GOLF

Ryder Cup -- Jack Nicklaus was chosen unanimously to captain the 1987 U.S. Ryder Cup team. It will be his second time as captain.