A special hearing will be held to determine the extent of an assault carried out at the Railway Club in Grantham.
Pamela Stephenson, 43, of Gresley Court in Grantham, admitted assault by beating following an incident on November 24 of last year.
Kate Hartley, prosecuting, told the court a witness saw Stephenson pull the victim to the floor and kick her in the face.
However, Stephenson, defending herself, said she struck the victim with the palm of her hand and denied kicking her when she was one the ground.
Magistrates decided a Newton Hearing will be necessary as, despite the guilty plea, the prosecution and defence version of events are too far apart.
The hearing will be held on May 24 at Grantham Magistrates’ Court.