2021 NCAA Tournament odds, lines: Red-hot college basketball analyst makes parlay picks for Sunday's Sweet 16 games

The 2021 NCAA Tournament will be down to the Elite Eight after Sunday's four Sweet 16 games. The first game of the day is No. 1 seed Gonzaga vs. Creighton. William Hill Sportsbook lists the Bulldogs as 13-point favorites in the latest Gonzaga vs. Creighton odds. Tip-off is set for 2:10 p.m. ET. The other three games on Sunday are Michigan vs. Florida State, Alabama vs. UCLA and USC vs. Oregon. Before you make any NCAA Tournament or college basketball picks, you NEED to see what red-hot SportsLine senior analyst Larry Hartstein has to say.

A former lead writer for Covers and The Linemakers, Hartstein combines a vast network of Vegas sources with an analytical approach. Over the past two seasons, he is 239-188-8 against the spread with his college basketball picks, returning $3,155 to $100 players. And he enters the second week of the NCAA Tournament on a major heater, going 16-6 with his last 22 college basketball picks (encompassing the NCAA Tournament, NIT and College Basketball Invitational).

On Saturday, Hartstein went a perfect 3-0 on his best bets for SportsLine members. Anyone who followed those picks took home a MASSIVE 6-1 payout!

Now, Hartstein has crunched the numbers for Sunday's NCAA Tournament Sweet 16 games and has posted two best bets.

We can tell you he's leaning Over 138 total points in the Oregon-USC matchup.

Elsewhere on Sunday, Hartstein has found a key x-factor that has him all over a team that he says was "not overly impressive" in its last game. He's also locked on another team that he says is "back at full strength." You ABSOLUTELY need to see what he's picking before you make any plays of your own.

So what team that was not overly impressive covers? And what team that's back at full strength do you need to lock on? ... Join SportsLine right now to see Larry Hartstein's NCAA Tournament picks for Sunday, all from the expert who's on a 16-6 heater and up almost $3,200 on his college basketball picks!