WORCESTER Rugby Club were today waiting to see whether Coventry would make a formal complaint to the RFU against title rivals Rotherham after Saturday's clash.

Officials from the Coundon Road club are investigating supporters and players' claims that Rotherham players used ear pieces under their scrum caps to receive instructions from a coach in the stand during their 41-28 National One victory.

The allegations, which Rotherham deny, were made during and after the game.

Last night, Coventry's chief executive Keith Fairbrother said that if sufficient evidence was found, a complaint would be made to English rugby's governing body.

Fairbrother and general manager, Ian Carvell, will conduct the inquiry which will take statements from spectators, players and an independent witness -- a Warwickshire referee -- who was present.

Fairbrother said that he expected the referee to provide an affidavit today.

"Numerous supporters and people with no axe to grind complained to me that players were receiving instructions from a guy who was speaking into his lapel," Fairbrother said.

"The man was apparently heard to say, 'move it left, move it left'. Initially I thought it ridiculous, just the normal conversation between a coach in the stand and those on the bench.

"The allegation is that at least one Rotherham player had a receiver the size of a 20 pence coin in his ear under the scrum cap. We are trying to get to the bottom of this before deciding if we take it further."

The RFU today confirmed that the wearing of ear pieces during matches is illegal and added that if a complaint was submitted it would be passed on to disciplinary officer Robert Horner.

"We haven't received a complaint yet," said director of communications, Richard Prescott. "However, if we did receive evidence to support the complaint then Robert Horner could consider sanctions."

If found guilty, Rotherham could be docked league points which would give second-placed Worcester a huge boost in their promotion challenge.

Tony Macarthur, manager of the English National Divisions side, was sat in the stands at Coundon Road and admitted he saw a coach, on his own, apparently giving instructions.

"There was certainly a lot of excited discussion among supporters about the coach," he said. "I think the Warwickshire referee could hold the key to the inquiry because he spoke to the fourth official about it."