3 Reasons behind Indiana Pacers wild In-Season Tournament win vs. Boston Celtics

3. Tyrese Haliburton leads late-game heroics

While all of this is fine and dandy, the Pacers were still in a dogfight in the fourth quarter, with Boston chipping away at the lead and eventually taking one of their own to put the Pacers on the brink of elimination. Boston would go as far as to tie the game at 105 apiece with less than two minutes remaining. This is when Indiana would wake up, however, with the Pacers going on a 14-7 run to end the game and not looking back.

The run would be started off in poetic fashion, as Tyrese Haliburton did what Tyrese Haliburton does best and converted a four-point play to put Indiana up four with just over 90 seconds remaining, a shot that must have sucked the life out of Boston.

Indiana would not be done, as following a miss on the other end by Jayson Tatum, Buddy Hield would continue to pile it on with a deep three-pointer to put Indiana up seven with under a minute to go. This shot had Troy Pepper, the Pacers PA announcer, out of his seat.

Following this three was when things started looking bleak for Boston, as Derrick White's bad pass was picked off by Myles Turner, leading to an Aaron Nesmith dunk that nearly tore the roof off Gainsbridge Fieldhouse, bringing back memories of old playoff moments.

This dunk would cap off a 9-0 run by Indy to snatch the game away from Boston, as with 30 seconds left and a nine-point deficit, there wasn't much the Celtics could do at this point. Jayson Tatum's layup put the game within seven, but some Indiana free throws would put the game away for good, along with a Buddy Hield three-pointer at the buzzer to rub salt in Boston's wound.

Overall, Indiana would outscore Boston 37-34 in the fourth quarter to take the game and shoot 54% from the field and 50% from three en route to a 112-122 victory.

With this resounding win, the Indiana Pacers are headed to the semifinals in Las Vegas, where they will either face the Milwaukee Bucks or the New York Knicks, depending on who wins Tuesday's quarterfinal matchup.

No matter who they face and how they fare in the upcoming game and possibly the one after that, the Pacers have to feel good about getting this far. So far, they have gone 5-0 in group play as well as knockout round play, and they seem prime for the big moments.

This game is the biggest stage that many of these players have been on, including Tyrese Haliburton, and they have risen to the occasion. We'll see what else they have in the tank come Thursday.