BASEBALL Kansas City Royals -- Said LHP Charlie Leibrandt, 16-11 with 3.41 ERA last season, has agreed to a two-year contract worth about $2.4 million.

FOOTBALL Philadelphia Eagles -- DE Reggie White was named United Press International's NFC defensive player of year. He received 40 votes, with New York Giants LB Lawrence Taylor and Chicago Bears LB Mike Singletary drawing one each. Buffalo Bills DE Bruce Smith received 31 of 42 votes to win AFC defensive player of year honors. Smith's closest competitor was Seattle LB Fredd Young, who received six votes. Kansas City Chiefs -- Released defensive coordinator John Paul Young.

OLYMPICS IOC -- Reported a record 143 countries have signed up for the 1988 Games in Seoul. With the Jan. 17 acceptance deadline approaching, the IOC still is awaiting responses from 24 other invited countries, including the Soviet Union and China.

AUTO RACING NASCAR -- Tightened carburetor restrictions at the organization's two fastest tracks, Talladega (Ala.) and Daytona Beach, are expected to drop speeds approximately 3 mph.

BASKETBALL Phoenix Suns -- Activated F Armon Gilliam; put F Winston Crite on IR.

COLLEGES Mississippi -- Named Tennessee defensive assistant coach Robert Henry defensive coordinator.

HOCKEY New York Rangers -- Recalled RW Chris Jensen from IHL Colorado. New York Islanders -- Sent D Ken Leiter to AHL Springfield for conditioning purposes.