Wiltshire Police are appealing for witnesses to a serious assault which occurred at the Oasis Leisure Centre at the weekend.
The incident happened late on Saturday 9 March during a boxing match at the venue.
A 31-year-old man was attacked by several other men who were known to him – he sustained significant injuries to his head and face.
PC Kevin Payne said: “This was a cowardly attack – the victim was knocked to the ground and had his head stamped on. When his partner tried to intervene, she too was set upon and kicked to the floor.
“The incident occurred during a boxing match at the venue so it is likely there would have been people nearby who were recording the event, and may have captured the incident. I really need to obtain this footage, or even witness accounts, in order to bring the offenders to justice.
“We will not tolerate violence like this and would urge anyone with information to call 101 and quote crime reference number 54190023776 or Crimestoppers anonmyously on 0800 555 111.”