Tigers bosses have been knocked back in a bid to track a full team -but they remain determined to have seven riders ready for the play-offs.
Damien Bates said they thought they’d got their man to replace Simon Stead, only for the move to be blocked by the sport’s top brass.
It’s been a frustrating search to find cover for Stead and the Owlerton side have used guest replacements. Brady Kurtz and Josh Grajczonek have been popular choices.
But with the prospect of facing Somerset in the play-offs, guest replacements will be harder to find for the end- of-season crunch.
Said Bates: “We thought we’d got a rider in to replace Simon last week only for him to be blocked.
“At the end of the day, rules are rules, and as things have turned out the rider concerned has since been injured.
“But we appreciate the fact we cannot really go into the play-offs relying on guests and we need to do something, whatever it takes. We will run out of options.”
Bates is remaining tight-lipped on his plans - and whether Stead may make a late-season cameo appearance after missing three months of the season since his horror crash at Rye House.
Kurtz has been booked to replace him again on Thursday in the Premier League clash with Scunthorpe and Jason Garrity will make a late call on his knee problem.