Once again absent from the NBA’s Christmas Day slate of games, the Spurs will host the Utah Jazz on Tuesday night at the Frost Bank Center in a homecoming for Wagner High School standout Jordan Clarkson. The former NBA Sixth Man of the Year signed a three-year, $55 million contract extension with the Jazz over the summer and has recently been sidelined with a thigh contusion. Familiar with adversity, San Antonio currently owns the worst record in the Western Conference.