Kenneth Faried, the victim of Patty Mill's flagrant foul in the first half, walked gingerly from the court after the game with a dazed look, but Karl said he was fine.
"The one I kind of got a little nervous on was I thought Corey kind of tweaked his knee on that last play with about a minute to go. It seemed like his knee went the wrong way," Karl said. "I wasn't worried about Kenneth. Kenneth's pretty tough. I think he likes getting hit like that."
Neither Faried nor Brewer said anything afterward about being hurt. Faried said he wouldn't miss any games.
Denver took a 69-63 lead into the fourth quarter. By the time Blair scored San Antonio's next basket with 7:51 left, the Nuggets had gone on a 37-10 tear.
The Nuggets have two home games remaining, against Portland on Sunday and Phoenix on Wednesday night, to try to break the team record for home victories since joining the NBA 37 years ago. Denver went 36-5 at home under coach Larry Brown in 1976-77.
The Spurs scored the game's first 14 points, much to the chagrin of the Pepsi Center crowd, which was implored to stand until the Nuggets scored their first points. They finally sat when Chandler sank a running jump shot at the 6:45 mark.
The Nuggets shot several airballs in the first quarter, when they were just 5 for 23 from the floor and missed their only free throw.
"Our bench," Chandler said when asked what got them back into the game.
"We needed energy," said Brewer, who took a career-high 25 shots. "They came out firing on all cylinders. So, I just tried to come in and push the pace, get us running and it worked out for us."
The Spurs weren't immune from the shooting foibles, missing 20 of 24 during one stretch as the Nuggets clawed their way back into the game and finally took a 38-37 lead into the locker room. That marked the Spurs' lowest-scoring half of the season and only Chandler's bucket in the final minute of the second quarter prevented the Nuggets from tying their low of 36 points for a half this season.
"I thought the whole game had a lot of weirdness to it," Karl said. "... I don't know if it was the way the game was refereed, two good offenses struggling to score, I'm sure they missed their playmakers; we missed our playmakers."
Notes: Karl said his players complained about the two hard practices leading to the game and he thought that was why they walked the ball upcourt more than he'd like. So, he's giving them Thursday off yet hoping Lawson comes in for some work. ... The Nuggets went 54-28 in both 1987-88 and 2008-09. ... The Spurs' previous worst half was a 38-point effort at Minnesota on March 12. The Nuggets scored 36 points in each half against Memphis on Dec. 29.
Follow AP Sports Writer Arnie Melendrez Stapleton on Twitter: http://twitter.com/arniestapleton