Jason Green weighs in with his Oklahoma City Thunder vs. Portland Trailblazers Tuesday NBA basketball Preview and a free nba prediction to boot. NBA odds favor the Thunder by 4.5. The over/under is set at 198.5. The Blazers are 6-18 ATS in their last 24 games as an underdog, 3-7 ATS in their last 10 games. Jamal Crawford is coming off a horrid 1/10 performance against the Warriors.