Bernard Tomic has been dropped from Australia's Davis Cup quarter-final tie due to an "unacceptable" attack on the nation's tennis governing body.

The world number 26 launched a tirade against senior officials, claiming that they abandoned him after he underwent hip surgery last year.

"I didn't get one phone call from Tennis Australia, Can we help you, Bernard? Can we do this? Do you need something? You know, Can we give you something?" Tomic told reporters. "What's going on? Where is the support? How can you do this? It's not about the money. It's about the respect."

In response, Tennis Australia chief Craig Tiley said: "His behaviour was unacceptable. Playing for our country is an absolute privilege, and with that privilege comes an obligation to behave appropriately. He didn't.

"The allegations are misinformed and untrue and he publicly derided some outstanding people. We are trying to build a strong culture underpinned by a philosophy of opportunity, not entitlement. This stuff is just not on."

Australia are due to play Kazakhstan in Darwin later this month.