Mark Schwarzer has threatened to quit Middlesbrough because of what he perceives as their slack attitude towards offering players new contracts.

The 34-year-old goalkeeper has revealed his frustration at Boro´s player retention policy, one he believes resulted in Australia team-mate Mark Viduka joining Newcastle on a free transfer this summer.

He said in the Australian press: "I´m not sure what I´m doing at the moment, my agent at the moment is in discussions with Middlesbrough and they´ve indicated that they want to offer me a new contract but, as yet, we haven´t agreed to any terms."

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