Negreanu announced the news on his X account and said that Roman is "super calm unlike [Amanda Negreanu] & I." He added that Roman is "already moving his neck like a linebacker."
Congratulations have already poured in, with Doug Polk saying, "Welcome to the world.... kid poker?"
Negreanu and Martin Kabrhel haven't always seen eye to eye, but the polarizing Czech player posted a single word and a heart emoji: "Vamos".
A special Christmas for the Negreanus
The couple first revealed they were expecting a baby boy back in May, when Negreanu shared the news in one of his early WSOP vlogs.
"We've been trying for a long time," Amanda said at the time, revealing that the couple were expecting their son through a surrogate.
She was already looking forward to their first Christmas as a family of three. "This is going to be the best Christmas," she said. "It's my favorite time of the year, and now there's going to be a baby."
Jaime Staples asked Negreanu how to pronounce his son's name – rOman or romAn?
"Good question! I think the standard is rO," Negreanu replied.
PokerOrg would like to add our congratulations to Daniel and Amanda.