Jason Green weighs in with his Portland Trail Blazers vs. San Antonio Spurs Monday NBA basketball Preview and a free nba prediction to boot. Tonight the spread favors the Spurs by -13.5. The over/under is set at 207.5. The 5-game losing streak is the longest for the Blazers this season and they have not dropped 6 straight since the 2010 season. J.J. Hickson has played great of late.