Tim Duncan scored 31 points, grabbed 15 rebounds and scared the Spurs when he accidentally hit David Robinson on top of the head as San Antonio cruised to a 121-98 win over the Celtics last night in Boston.

"You're concerned about anyone when he bites the dust like that," Spurs Coach Gregg Popovich said.

Duncan, following up his own miss, hit Robinson with his arm. The stunned center crumpled to the court, first holding his head, then his right shoulder. He lay under his basket for more than two minutes then went to the locker room with 1 minute 21 seconds left in the half and San Antonio leading 60-39. "I got a dead feeling in my arm, but it went away pretty quick," Robinson said.

He played the first eight minutes of the third quarter before going to the bench. Robinson finished with 10 points and nine rebounds.

"They physically dominated us. That's why they're world champions," Boston Coach Rick Pitino said. "They're a great basketball team with a lot of answers."

MAGIC 112, MAVERICKS 100: In Orlando, Darrell Armstrong scored a career-high 33 points. "You have to keep the mind-set of a point guard and the mind-set of a shooter, too," Armstrong said.

HEAT 93, HAWKS 91: Dan Majerle sank a game-winning three-pointer with 1:15 left to give Miami the home win. "That's all he [Majerle] does is shoot three-pointers," Hawks Coach Lenny Wilkens said. "You have to make him put it on the floor."

TRAIL BLAZERS 88, TIMBERWOLVES 81: In Minneapolis, Damon Stoudamire scored 16 points during a key third-quarter run and Portland held Kevin Garnett to 11 points. "Rasheed [Wallace] defensively played Garnett tough," Stoudamire said.

NUGGETS 109, RAPTORS 84: Nick Van Exel had 19 points and Ron Mercer 15 as host Denver won its third straight. "We had a little moss on the stone," Toronto Coach Butch Carter said. "At times [we] looked like the Keystone Cops."

HORNETS 89, GRIZZLIES 73: Eddie Jones led six Charlotte players in double figures with 14 points. It was Vancouver's 27th consecutive loss on the road.

NETS 92, WARRIORS 84: Johnny Newman and Keith Van Horn each scored 22 points as visiting New Jersey snapped a seven-game losing streak.

LAKERS 90, JAZZ 82: Shaquille O'Neal had 39 points and 18 rebounds to lead host Los Angeles.

BUCKS 102, BULLS 95: Glenn Robinson scored 22 points to lead Milwaukee at home.