Edinburgh Monarchs have suffered another injury setback as they seek to retain their Premier League crown.

With Andrew Tully almost certainly out for the season, American Ryan Fisher crashed in his third race at Glasgow Tigers on Sunday and suffered concusion.

"We're hoping it's not too bad and that he can race at Kings Lynn in what was already a difficult match on Wednesday. We'll just have to wait and see," said a Monarchs' spokesman.

With the problems piling up for Monarch, Glasgow finished comfortable 55-38 winners in Sunday's meeting.