The 2020-21 NBA season begins on Tuesday with a star-studded doubleheader. The action gets underway when Stephen Curry and the Golden State Warriors battle Kevin Durant and the Brooklyn Nets at 7 p.m. ET. The action wraps up when LeBron James and the Los Angeles Lakers host Kawhi Leonard and the Los Angeles Clippers at 10 p.m. ET. Before you make any opening night NBA picks and parlays, you NEED to see what SportsLine's advanced computer model has to say. 

The SportsLine Projection Model simulates every NBA game 10,000 times, and it returned over $5,000 in profit on its top-rated NBA picks last season.

The model is up nearly $8,100 over the past two seasons. Last year, it went a stunning 61-33 on top-rated picks against the spread, returning almost $2,500 on those selections alone. Anybody who has followed it has seen HUGE returns.

Now, it has set its sights on Tuesday's NBA doubleheader and has revealed its best four-way parlay picks. This four-way parlay could lead to a HUGE 10-to-1 payout!

One part of the four-way parlay we'll give away: The model is backing the Under (223.5) in Lakers vs. Clippers. The model says the Under hits in over 50 percent of simulations, making it a solid choice for your NBA picks on Tuesday. Confidently lock that in as a key part of your opening night NBA parlays. 

The model also has identified three other extremely strong picks that NEED to be in your four-way parlays, including an underdog that has PLENTY of value, making this team a MUST-BACK! You ABSOLUTELY need to see who it is before locking in any NBA parlays.

So where does the betting value lie in Tuesday's NBA doubleheader? And which team is a MUST-BACK in your NBA parlays? ... Join SportsLine here to see which teams cover the spread, all from the model that has returned nearly $8,100 on its top-rated picks over the past two seasons!