Warriors-Jazz series preview: Key matchup, X-factor, prediction

Warriors-Jazz opens on Tuesday. (Jane Tyska/Bay Area News Group)OAKLAND — The Warriors have only lost once since March 12, winning 19 of their past 20 games. That lone defeat came on April 10 to the Utah Jazz — those same Jazz that’ll be in Oracle Arena on Tuesday for Game 1 of the second round.

But don’t take much from that night. The Warriors rested Klay Thompson and, having already clinched the top seed, limited the minutes of their other stars. Similarly, there’s not much to derive from Golden State’s two wins over Utah this season. The Jazz were missing key pieces both nights.

So, more than any of the other West competitors, this postseason matchup arrives with some unknown. But there’s…