Against all odds, the song remains the same. Not the Spurs’ playoff streak — although that, too, was extended to an unthinkable 22 this weekend— or the numbing paroxysm that is “Sandstorm” by Darude — an AT&T Center game ops staple that blared through a second-quarter timeout, as it often does — but rather San Antonio’s season-long struggles against the Sacramento Kings, who remained a headache in their own right on Sunday by handing the Spurs a 113-106 home loss. It was the third and final meeting between the two teams, with the Kings sweeping the season series for first time ever.