Chris Dawson has plead not guilty to the murder of his wife and Sydney woman Lynette Dawson.
The former rugby league player, who was the subject of the groundbreaking and award-winning podcast The Teacher's Pet, was charged with his former wife's murder last December, after Lynette disappeared from the city's northern beaches in 1982.
Dawson's lawyer formally entered a not guilty plea at Downing Centre Local Court today.
The former Newtown Jets rugby star has been a person of interest since his wife went missing almost 37 years ago.
Chris drew suspicion to the case when he invited his 16-year-old lover and student, Joanne Curtis, to move into his home just two days after his wife's disappearance.
What's more, it took Chris almost six weeks to tell police his wife had gone missing, insisting at the time that she had left on her own accord to join a religious group.
WATCH BELOW: Chris Dawson and twin brother Paul featured in 1989. Story continues after video.
The 70-year-old will be due back in court on August 8 as the matter continues.