The Bramall Lane outfit had an agreement in place with Parma to sign the 23-year-old before the transfer window slams shut today.
Karamoh was even claimed to have undergone a medical in France ahead of putting pen to paper on a deal with Sheffield United.
It then emerged that issues in securing a work permit have raised concerns over the Frenchman’s move to the Championship club.
And according to Italian outlet Tutto Mercato, Sheffield United will not be able to get a deal for Karamoh across the line due to the same reason.
Karamoh has not been able to secure a work permit in time, putting an end to his hopes of joining the Blades today.
A deal for Karamoh falling through will come as a huge blow for Sheffield United, who were keen to strengthen their attacking options with his addition.
The Yorkshire outfit, though, have signed Morgan Gibbs-White on loan from Wolves and hope to complete a deal for Roma goalkeeper Robin Olsen in time.
