By 16, he was spending time in pool halls, hustling, sports betting and - yes - playing cards.
In the past, Daniel occasionally showed questionable judgment speaking his mind, but the grounding effect of his relationship with his wife, Lori, has helped him make better decisions.
For a more traditional lifestyle, he tried one day as a telemarketer and a month working at a Subway, but his path clearly led elsewhere.
At 21, an eager (and finally legal) Negreanu took the money he'd made to try his talents against the world's finest in Las Vegas.
Around this time, success started to catch up with Daniel.
Excessive drinking, money mismanagement and too much time alone affected his game, and 2000 was a quiet year for wins.
He lasted about seven months before returning home, broke but determined.