Gregg Popovich knew. The San Antonio Spurs coach knew that you never know, no matter who is or isn't playing.

In November, he brought a shell of his roster to AmericanAirlines Arena and had the Miami Heat fighting for their lives before Erik Spoelstra's team pulled out a five-point victory.

Sunday night, the tables were turned at the AT&T Center, and this time Spoelstra's team actually pulled off the unexpected magic, with center Chris Bosh converting a 3-pointer with 1.1 seconds to play to close the scoring in an 88-86 Heat victory.

Even with LeBron James, Dwyane Wade and Mario Chalmers held out with what were cited as injuries, the Heat took a three-game lead over the Spurs in the overall NBA standings, with the season sweep practically clinching the tiebreaker.

The Heat entered 2-22 all-time in San Antonio.

As in the first meeting in the two-game season series, when Popovich sent home Tim Duncan, Tony Parker, Manu Ginobili and Danny Green, the shorthanded team proved to be long on competitiveness.

For their part, the Spurs weren't fully whole Sunday, with Ginobili sitting out with a hamstring injury sustained a game earlier against the Los Angeles Clippers, an injury Popovich indicated could keep the guard out for the start of the playoffs.

With the Heat listing James out with a sore hamstring, and Wade and Chalmers out with ankle issues, Mike Miller, Norris Cole and Rashard Lewis were moved into the starting lineup, with Joel Anthony and James Jones moved into the rotation.

The absences of James and Wade allowed Bosh to operate as the focus of the Heat offense early. He closed with 23 points and nine rebounds.