Luka Doncic's mother had a visceral reaction to her son's game-winner for the Dallas Mavericks against the Los Angeles Clippers on Sunday.

Mirjam Poterbin took to Instagram to share her pride in her 21-year-old son, joking she did not even cry as much when the Mavs star was born.

Doncic's mother was hardly the only person to share their astonishment at Luka's heroics.

A number of NBA superstars took to Twitter to react to the shot, which helped the Mavs even the series at two games apiece.

Luka Doncic was unconscious all afternoon, scoring 43 points on 18-for-31 shooting and raining in a number of deep threes late in the game.

The Clippers did their best to fight back in the fourth quarter and overtime, with Lou Williams scoring 36 points in 34 minutes and Kawhi Leonard adding 32 points of his own. Marcus Morris even hit a corner three to give L.A. a one-point lead with just under 10 seconds to go in OT.

However, Doncic had the last word. He dribbled around Clippers guard Reggie Jackson before launching a step-back triple at the buzzer, putting the final touch for the Mabs on a ridiculous back-and-forth affair.

This was a massive win for Dallas, who managed to get past the Clippers despite the absence of Kristaps Porzingis.

The Mavs were just seconds away from going down 1-3 in the series, a practical death sentence in the NBA. Instead, they snatched all the momentum away from the Clippers and head into Game 5 riding high.

It remains to be seen what other thrills this series still has in store. But for now, Mama Doncic is proud of her baby boy.