Steve Roach's 13-year association with 2GB is no more after the radio station sacked him over allegations of intimidating behaviour towards a producer.

The former Balmain Tigers, NSW State of Origin and Australian front-rower confirmed on Thursday that his contract with the Macquarie Radio Network had been terminated as a result of a bullying complaint made by a younger male colleague.

Dumped: Steve Roach has been sacked by 2GB following a bullying complaint. Credit:Mick Tsikas

Roach's exit from the station stems from an incident nearly a fortnight ago when he was alleged to have verbally attacked a producer in the lead-up to 2GB's coverage of the all-Sydney blockbuster between Canterbury and Parramatta at ANZ Stadium.

A source with knowledge of the altercation said the 52-year-old responded with a heated outburst to an innocuous comment by the staffer, before then turning his rage towards a senior member of the commentary team when they jumped to the defence of the producer.