unproven

Alternatively, Australia would have to blood someone unproven at Test level, or recall a more experienced seamer who has not been around the side for a few years.

However, Mr Graves said there was no historical evidence linking the name to actual rabbits and he said the theory that poor people couldn't afford rabbit meat and used cheese instead was unproven.

He’ll apparently risk dozens of full-grown proteges for one unproven tot.

Label boss Scott Borchetta gave the unproven singer a big cash advance in exchange for having ownership of the master recordings to her first six albums "in perpetuity".

Yet inexplicably, the best-laid plans continually fail, and they are forced to hand said ball to unproven rookies.