Mildenhall boss Mick Horton is still waiting for a ruling from the Speedway Control Board on his appeal to sign a new rider in the build up to this Sunday's Premier League home clash with Edinburgh.

Mildenhall boss Mick Horton is still waiting for a ruling from the Speedway Control Board on his appeal to sign a new rider in the build up to tomorrow's Premier League home clash with Edinburgh.

He is frustrated that his attempt to sign a replacement for injured skipper Jon Armstrong has been blocked by the sport's ruling body.

He said: "We would like to bring in Paul Lee who has been out for a long time due to injury, giving him a chance of a comeback, in place of Jon who will be out for another three weeks or so with rib injuries. I just can't understand the attitude of the Promoter's Association. Turning down our bid doesn't make sense. Jon had to move up into the main body of the team from reserve because his average meant he was too good for the number six and seven spots, but now he is injured they have told us we can only bring in a reserve to replace him."

Edinburgh are without their top scorer Rusty Harrison who they sacked last week when he refused to carry on riding on what he considered a dangerous circuit in the 47-42 defeat by Rye House.

In a double header meeting the PL fixture (3.30pm) is followed by a Conference League clash with high-riding Plymouth. The Tigers Juniors will be boosted by their midweek draw at Stoke

Plymouth include former Mildenhall rider Lee Smart and are led by Seemond Stephens, the top rider in the division.