Adam Kownacki is determined to bounce back following his first career loss.

It wasn’t the night he was accustomed to at the Barclays Center, but Adam Kownacki knew this was just boxing. One punch can change the dynamic of a fight, and  “Babyface” was caught with a well placed one from Robert Helenius.

“It’s boxing, you gotta be careful at all times,” said Kownacki, who grew up in Brooklyn and made his tenth appearance at the Barclays Center. “One move of not being cautious, you get caught with a good shot; and the fight changes. Especially in the heavyweight division. But it was a learning lesson. I’m still young, I’m still beautiful. So I’ll be back”

Kownacki (20-1,15KOs) appeared to have Helenius (30-3,19KOs) in trouble against the ropes to start the fourth round. But the determined underdog countered with a solid right hand, followed by a one-two combination. Helenius scored a clean knockdown with Kownacki going down on his knees. However, referee David Fields incorrectly ruled it as a slip.

“The Nordic Nightmare” erased the doubt immediately by dropping Kownacki on his back with a left hook. The impact sent the pro Kownacki crowd into a frenzy of shock and panic within an instant. Helenius then pressed forward and unloaded relentlessly, to which the Lomza, Poland native retreated and left the attack unanswered. Fields had seen enough, and called the contest to a stop at 1:08 of the fourth round.

Although Kownacki’s quest for a heavyweight title shot was brought to an abrupt halt, he looks upon other greats in the division who have risen after falling.

“I wanna be the best,” said Kownacki. “I’ve got to prove I’m the best fighter. But via great fighters like Lennox Lewis, Lewis came back. A lot of great fighters lost and came back, so I’m about to do the same.”