Wonder what Clifton native Marcus Browne was up to on Saturday night?

Evidently, he had his eyes on Oleksandr Gvozdyk, the 31-year-old Ukranian WBC light heavyweight champ -- who just so happens to be trained by fellow Staten Islander Teddy Atlas.

Gvozdyk (17-0, 14 KOs) successfully completed his first title defense on Saturday after challenger Doudou Ngumbu (38-9, 14 KOs) was forced to bow out of the fight with a calf injury, leading to a fifth round TKO.

Nevertheless, the champ, who trained with Atlas for eight weeks in Oxnard, California leading up to the bout, appeared to be in full control prior to the decision.

Browne (23-0, 16 KOs), who defeated Badou Jack in January for the WBA’s interim light heavyweight belt and the WBC silver title, was named the mandatory challenger for Gvozdyk’s belt shortly thereafter.

And he took no time before taking to Instagram to heat up the social media stove on both Atlas and Gvozdyk after last night’s bout..

Browne tagged Teddy Atlas in his Instagram post writing: “MANDATORY...you know exactly what that means...you can’t run from this ass whooping!!!! #AndTheNew MB”

Last month, the Advance spoke with Atlas, who admitted he was rooting for Browne at the time, but that didn’t stop the quick-handed fighter from furthering his relentless pursuit of Atlas and Gvozdyk, as he proceeded to edit a picture of a clown’s face onto Gvozdyk’s body in a post on his Instagram story.

When a fan inquired in the comments: “Aren’t you from Teddy’s gym?”, Browne did not hold back.

“No the [bleep] I’m not,” retorted Browne, who does in fact train out of the Atlas Foundation-owned Atlas Cops & Kids Boxing Gym in Browne’s native Park Hill. “He came and made himself apart of my gym in 2012 when i was going to the Olympics...”

Whether it was promotion for his next fight, or Browne truly resents Atlas, the sentiment nevertheless struck the Hall of Fame boxing trainer -- who noted that funding for the gyms began before Browne ever went to the Olympics, and also only allowed gym time to kids who stayed in school and utilized the tutors provided by the Atlas Foundation.

“It’s beyond disappointing to hear the not only classless things Browne has said, but the lack of truth and any appreciation for all the foundation did to keep those gyms open for all those years,” Atlas told the Advance on Sunday.

“That’s a million dollars that could have went to other programs to help people,” he added. “But, as good people remind me, there were still many kids helped and saved by our gym programs...but to say it doesn’t hurt would be lying."

It’s yet to be determined if Browne and Gvozdyk can link up in the ring in 2019, or at any point, but the Staten Island beef is certain to be cooking if it does come to fruition..