March Madness has truly begun! By the end of the first round, a trio of top seeds were already gone — No. 1 seed Purdue, No. 2 seed Arizona and No. 4 seed Virginia — and gone with them were millions of busted brackets thanks in part to New Jersey's two teams in the tournament.

Here is what to know going into the weekend of the NCAA Tournament, including the favorites and underdogs as well as key games:

TOP SEEDS

The top four seeds in the tournament were given to Alabama, Houston, Kansas and Purdue. Each had its share of headaches to set up what is already proving to be a chaotic tournament and the Boilermakers were the first to fall, ousted in a first-round stunner. Here is the latest from each region:

EAST REGION: The Boilermakers got a No. 1 seed for the fourth time, but Purdue was dumped by Fairleigh Dickinson in a near-historic upset. The region appears to be wide open for the likes of No. 2 seed Marquette, Duke, Michigan State and more.

SOUTH REGION: Alabama, led by coach Nate Oats in a challenging season, is a No. 1 seed for the first time behind SEC player of the year Brandon Miller, who has armed security on hand after being the subject of threats. The Crimson Tide opened the tourney with an easy win. Potential hurdles could include Baylor, Missouri and Creighton. Princeton or Furman, anyone?

MIDWEST REGION: Houston got a top seed and won its opener but All-American Marcus Sasser is hobbled by a groin injury. Potential hurdles could include No. 2 seed Texas, which advanced to face surprising Penn State.No. 3 seed Xavier held off Kennesaw State in its opener.

WEST REGION: Kansas is the top seed in a stacked region and the Jayhawks faced a tantalizing second-round matchup against Arkansas. Kansas is without coach Bill Self, who is recovering from a heart procedure. No. 2 seed UCLA looked every bit a title contender in its opener, No. 3 Gonzaga advanced and a juicy 4-5 matchup pitted UConn against Saint Mary's in the second round.

Tosan Evbuomwan, Oumar Ballo
Princeton forward Tosan Evbuomwan (20) shoots over Arizona center Oumar Ballo (11) during the second half of a first-round college basketball game in the NCAA Tournament in Sacramento, Calif., Thursday, March 16, 2023. Princeton won 59-55. (AP Photo/José Luis Villegas)
loading...

SHINING MOMENTS

The unforgettable moments are piling up already.

Princeton used a late run to earn its first NCAA Tournament win in 25 years by ousting No. 2 seed Arizona. Furman celebrated its first tourney appearance since 1980 with a win over No. 4 seed Virginia on a deep 3-pointer by JP Pegues with 2.4 seconds left.

Then came 16-seed Fairleigh Dickinson's win over Purdue as the 22 1/2-point underdog stifled 7-4 center Zach Edey to advance and join UMBC in the record books.

At the player level, Texas A&M had no answer for the 3-point acumen of Penn State's Andrew Funk, who made 8 of 10 to help send the Aggies home. Kam Jones of Marquette had a stunning second-half scoring binge to lead the Golden Eagles to a win in their opener.

NCAA Fairleigh Dickinson Purdue Basketball
Fairleigh Dickinson forward Ansley Almonor (5) celebrates beating Purdue 63-58 after a first-round college basketball game in the NCAA Tournament Friday, March 17, 2023, in Columbus, Ohio. (AP Photo/Paul Sancya)
loading...

GAMES TO WATCH

No. 4 Tennessee (24-10) vs. No. 5 Duke (27-8), Saturday, 2:40 p.m. ET (CBS)

The Blue Devils have won 10 straight under first-year coach Jon Scheyer with Jeremy Roach matching his career-high with 23 points in each of his last two games. The Volunteers blew an 18-point lead and survived a challenge from Louisiana-Lafayette in the opening round.

No. 7 Missouri (25-9) vs. No. 15 Princeton (22-9), Saturday, 6:10 p.m. ET (TNT)

Princeton grabbed its first tourney win in 25 years by using a late 9-0 run to upset No. 2 seed Arizona. The other Tigers ended a six-game tournament skid with their first win in the Big Dance since beating Clemson in the first round in 2010.

No. 1 Houston (32-3) vs. No. 9 Auburn (21-12), Saturday, 7:10 p.m. ET (TBS)

The top-seeded Cougars could be without star guard Marcus Sasser, an All-American who appreared to have reinjured a groin in the opening round against Northern Kentucky. Either way, the Cougars will have the find a way to slow Johni Broome, who was unstoppable in the Tigers' opening win.

No. 2 Texas (27-8) vs. No. 10 Penn State (23-13), Saturday, 7:45 p.m. (CBS)

The Longhorns will have to hope Andrew Funk falls into some kind of, well, funk, for the Nittany Lions. His barrage of 3s helped Penn State earn its first NCAA Tournament win in 22 years. Texas, under interim coach Rodney Terry, routed Colgate in the first round.

GO DEEPER

Gun violence has cost lives and disrupted college sports all season, touching some of the top programs in college basketball, including Alabama. Coaches have been thrust into uncertain and unwelcome roles in trying to navigate the topic — as well as the fallout from the Supreme Court decision to overturn Roe vs. Wade.

On a lighter note, if you feel you know March Madness pretty well, try this 25-question trivia quiz put together by AP.

PLAYERS TO WATCH

The NCAA Tournament is filled with great players and the AP All-America team is a good place to get familiar with the names. It's also an event where guys you've never heard of — no offense, Drake — can take a star turn. Guard play is always going to be important (see: Baylor, 2021 title winner) and there are some NBA prospects in the mix.

Bet on this, too: Some player — maybe more than one — will have a chance to join the mustachioed Doug Edert (remember Saint Peters' inspiring run last year?) and find a way to cash in on their celebrity.

HOW TO WATCH

Every game of the men’s tournament will be aired — here is a schedule — either on CBS, TBS, TNT or TruTV and their digital platforms. CBS, which also has a handy schedule that includes announcing teams, will handle the Final Four and national title game this year.

The NCAA is streaming games via its March Madness Live option and CBS games are being streamed on Paramount+. Fans of longtime play-by-play announcer Jim Nantz should soak up every moment: It’s his final NCAA Tournament.

BETTING GUIDE

Who's going to win the national championship? The betting favorites late Friday to reach the Final Four are (in order) Alabama, Houston, UCLA, Gonzaga, Texas and Kansas, according to FanDuel Sportsbook.

MARCH MADNESS CALENDAR

Selection Sunday set the bracket matchup s for the First Four and first- and second-round games that stretch from Florida to California. Sweet 16 weekend will see games in New York City (East Region), Las Vegas (West), Kansas City, Missouri (Midwest), and Louisville, Kentucky (South).

Where is the Final Four? In Houston, on April 1, with the championship game on April 3. Basketball aficionados, take note: The women’s NCAA Tournament will hold its Final Four in Dallas, a four-hour drive up the road from Houston.

Can't get enough March Madness? Well, there is talk about expanding the tournament despite a host of challenges. Enjoy the 68-team version for now!

Play ball NJ: These MLB pros are from New Jersey

A fair amount of New Jersey born baseball players have made it to the majors. These pros, active to start the 2023 season, all have NJ roots.

More From 94.5 PST