He then replied to teammate Simon Child's tweet about bad traffic by saying: "hahaha at least @SonnyBWilliams didnt steal ur mrs".
Child replied "Yeah that's s***s sad man."
Black Sticks striker Hugo Inglis retweeted Burrows' original tweet and told someone who asked him about it that Williams' had stolen his friend's girlfriend.
Williams has had a more high-profile love life than his younger new girlfriend. In September he was linked to a fellow athlete, 21-year-old Cantabrian Aleisha Berryman.
The pair were snapped by a woman's magazine grabbing a Chinese takeaway meal together, dressed down in trackpants and casual jumpers.
Williams is scheduled to fight Clarence Tillman III for the New Zealand Professional Boxing Association heavyweight title in Hamilton on February 8.
He began training with his new Super Rugby team, the Chiefs, in Hamilton this month.
- HERALD ONLINE