SYDNEY'S 2GB radio station is in crisis after a clash between morning show star Ray Hadley and the network's managing director which has embroiled the company's biggest shareholder, John Singleton.

Sources told Fairfax Media that Macquarie Radio Network's managing director, Rob Loewenthal, had on Tuesday suspended Hadley for the rest of this week for allegedly verbally abusing Richard Palmer, a young digital content manager who had been hired last October to improve 2GB's website.

No comment … John Singleton and Ray Hadley. Credit:Peter Rae, Tim Elliot

But Hadley, unhappy with his suspension, phoned his friend John Singleton, sources said.

Singleton, the majority owner of Macquarie Radio, decided that Hadley would remain on air, overruling his managing director.