Cape Town - A dispute between the Blue Bulls Rugby Union's top brass and its ex-players union is threatening to escalate.According to Beeld, there is dissatisfaction among the ex-players about the union's plans to "write the ex-players union out of the union's constitution".Former Springbok and Bulls captain Wynand Claassen is the chairperson of the ex-players union.The Blue Bulls Rugby Union is set to approve the new constitution which would see the ex-players union have no say whatsoever on the union's executive committee.The new constitution will be discussed at a meeting on Monday night. Claassen said they will oppose the new proposal.While there are rumblings in the Bulls boardroom, on the field things are also looking bleak, with the Bulls having lost their first two Currie Cup games by heavy margins. They got hammered 41-13 by the Lions in Round 1 before Western Province embarrassed them 41-17 at Newlands this past weekend."There is unhappiness about what's happening on the field. We (the ex-players) want to play a supporting role and we're not here to drive a negative agenda. The team's current form justifies the concern out there," said Claassen.The Bulls tackle the EP Kings at Loftus Versfeld this Saturday (15:00 kick-off).