Things to note:

• Their are four 10-minute periods.
• The winner faces Greece in the final.
• The US is the only remaining undefeated team
• The US has not won this tournament since 1991

Liveblog:

USA gets off to a rough start, missing their first 7 shots and falling down 6-0.

Halfway through the first, they're tied at 6.  Very low scoring game thus far.

The US has gone on an 11-0 run and are now up 11-6.

Terrico White hits two 3's in 30 seconds, the US is now up 20-11.

After 1 period, the US leads 22-16.  The US continues to rely heavily on the 3 point shot, as they've done in previous games, especially against Canada. They're 4/11 so far.  Terrico White leads all scorers with 8 points.

The US jumps out to a 29-16 lead to start the 2nd period.  Dino Butorac hits his third 3 to cut the lead to ten.

Dino Butorac hits his fourth three.  The US lead is now 33-24 halfway through the second period.

Seth Curry hits a 3 with just about 2:30 remaining to give the US a 44-30 lead, their largest in the game.

John Shurna scores with 1:20 left in the second, making it 46-30.

At halftime, USA leads Croatia 46-33.

Croatia's most important player thus far has been Dino Butorac.  He is 4/5 from 3 point range, and his scoring has really kept them in this game.

For the US, both Terrico White and Seth Curry have 10 points, but the most impressive to me has been Arnett Moultrie.  He has 6 points and 5 rebounds in less than 9 minutes of play.

Croatia has been poor on offense.  They have 9 turnovers, the US has four, and outside of Dino Butaric, they're just 9/27 from the field, and 1/6 from 3 point range.  As I mentioned earlier, Butaric is the only reason this one isn't over.  The rest of the Croats will need to step it up in the second half.

3 minutes into the 3rd period, and the US is still up by 13, leading 50-37.

Halfway into the 3rd period, Tomislav Zubcic hits a 3 and the Croats have gone on a 7-0 run and now trail the US 50-44.

Mario Delas scores, cutting the lead to 4.  US coach Jamie Dixon calls a timeout.

Dino Butorac, Croatia's hero in the first half, has been held scoreless in the second, yet the US is only up 4.

After Darius Miller hits a free throw for the US, Tomislav Zubcic hits a 3, making the score 51-49.

Leon Rodosevic hits two free throws to tie the game with less than 3 minutes remaining in the 3rd.  What an amazing quarter by Croatia, to come back from a 13 point deficit in less than a quarter against the undefeated Americans.

Tyshawn Taylor hits two free throws to give the US back a 2 point lead. 53-51.

Leon Radosevic scores to tie it back up.

Toni Prostran scores with under 2 minutes remaining to give Croatia their first lead since the first quarter.  Incredible.

Leon Radosevic scores again and Jamie Dixon calls a timeout with just over a minute remaining.  Croatia is leading 57-53.  They are on a 20-3 run.

With 30 second remaining, the score is tied 57-57 after two Tyshawn Taylor free throws and an Ashton Gibbs 2-pointer.

Tomislav Zubcic scores, and Croatia is leading the US 59-57 after 3.

In the third period, Toni Prostran had 4 assists, which is more than any USA player has had so far.

The score remains 59-57 a minute into the 4th period.

Klay Thompson scores to tie the game, but Ivan Batur answers with a 3.  Two minutes in, Croata leads 62-59.

After Tyshawn Taylor makes a 2, Howard Thompkins III scores to give the US a 1 point lead.  Thompkins worked hard for his points.  He got an offensive rebound, then had his putback attempt block, rebounded that, shot again and missed, got his own rebound again, then finally put the ball in the bucket, giving the US their first lead in the 4th.

Howard Thompkins III blocks a shot, the US is up 63-62 with 7 minutes remaining in regulation.

After Ashton Gibbs makes 2 free throws, Mario Delas scores, cutting the lead back to one.

Gordon Hayward hits a 3 to give the US a 70-66 lead with under 6 minutes remaining.

With less than 5 minutes remaining, Toni Prostran hits 2 free throws, cutting the lead down to 2.

Mario Delas scores for Croatia, tying the game at 70 with about 3:30 remaining in regulation.

Gordon Hayward scores, giving the US a 2 point lead.

Shelvin Mack scores, giving the US a 4 point lead with 2:30 remaining.

Mario Delas is fouled and makes one of two free throws.  Thus US leads 74-71 with 2 minutes left.

Tyshawn Taylor makes one of two free throws. 75-71 US.

Toni Prostran makes one of two free throws.  With 90 seconds remaining, the US leads 75-72.

After a missed shot from each team, Gordon Hayward is fouled with just under a minute remaining.  Hayward makes both free throws giving the US a 77-72 lead.

Croatia's first half hero, Dino Butorac hits a 3 cutting the lead to 2 with 40 seconds left.

Terrico White misses a 3, but Gordon Hayward gets the offensive rebound with 20 seconds left.  Tyshawn Taylor misses, and John Shurna, who had just been subbed in, gets the offensive rebound and passes it to Gordan Hayward, who is fouled with 16 seconds left.

Hayward hits both free throws, and the US leads 79-75. Croatia calls a time out.

Toni Prostran scores to cut the lead to 2 with 12 seconds left, then fouls US guard Ashton Gibbs with 11 seconds remaining.

Ashton Gibbs makes both free throws.  The US leads 81-77 with 11 seconds remaining, and USA calls timeout.

Toni Prostran misses a 3.  Luka Babic gets the rebound and tries one of his own, but it's no good.  Team USA wins 81-77

3 stars (I know that's for hockey, but I don't care):

3rd star - Tomislav Zubcic: 15 points, 8 rebounds, 1 assist, 6/12 FG.

2nd star - Toni Prostran: 15 points, 7 rebounds, 7 assists, 5/12 FG.

1st star - Gordon Hayward: 15 points, 8 rebounds, 2 assists, 5/8 FG.

Hayward must be the first star.  If not for his 9 fourth quarter points, the US may very well have lost.

The US advances to play Greece in the Championship Final.  Croatia will play Australia for 3rd place.