Patrick Ewing scored 13 points in 34 minutes despite an injured right knee. The Spurs held Knick guard John Starks scoreless in the fourth quarter.
Charles Oakley led New York with 16 points and helped Ewing clog the middle against Spurs center David Robinson.
Robinson still scored 29 points and pulled down 12 rebounds.
After Ewing committed his fifth foul, Robinson sank two foul shots with 1:51 to play, bringing the Spurs to 91-88. Oakley then missed two 18-footers, and San Antonio had the ball before Harper stole it from Avery Johnson.
Phoenix guard Elliot Perry was knocked unconscious when he was elbowed by Karl Malone. Perry was to be hospitalized overnight because of a concussion.
Orlando 124, Miami 89--Anfernee Hardaway scored 17 of his 30 points in the third quarter as the Magic broke open a close game at home.