A mum's 50th birthday party ended in a violent scrap when thugs attacked another guest, and then stamped on his leg and broke it.
Tyler O'Connell burst his way into Barry Rugby Club where the woman was celebrating her milestone birthday.
The 29-year-old put fellow guest Dean Lock into a headlock and knocked him unconscious before another man broke his leg by stamping on it.
Shocking CCTV footage showed the attack which erupted in the foyer, reports Wales Online.
O'Connell was seen leaving the party venue, but he then went back in and involved himself in the melee, Cardiff Crown Court heard.
Without provocation, O'Connell punched Mr Lock who fell to the ground unconscious and remained out cold on the floor as party guests walked past.
Caine Wells, 30, then walked up to Lock and stamped on his leg, breaking it.
Mr Lock was rushed to hospital and spent four days receiving treatment before being discharged.
Metal rods were inserted into his leg and he also suffered a broken nose and black eyes following the assault in Barry, Wales.
In a victim personal statement, Mr Lock said the assault had a big impact on his life and described Wells "doing a proper number on me".
He added: "He's ruined my life and I have to walk using crutches. I am left with scars for life, nine scars, which has affected me mentally.
"I am extremely anxious since being assaulted, I'm afraid to bump into them and I'm not able to move to Barry.
"I'm not able to sleep well and I am in constant pain and I'm unable to take painkillers because of addiction issues. I feel scared to go out."
The victim said he was in "extreme and constant pain" and cannot walk even 100 metres following the attack in February 2020.
O'Connell and Wells, both of Barry, Wales, were arrested but answered no comment in interview.
O'Connell later pleaded guilty to wounding and affray, while Wells pleaded guilty to wounding.
Addressing O'Connell, Judge David Wynn Morgan said: "There was no need for you to become involved in this at all.
"Instead of standing back you joined that scene of disorder without any hesitation and behaved disgracefully.
"It took a considerable amount of time to calm you down and after that had calmed down outside the premises, without provocation you struck Mr Lock so hard in the face he went straight to the floor and fractured his nose."
"You, Caine Wells, came down upon Mr Lock when he was prone and unconscious on the floor and for some reason, whatever reason was inexcusable, you stamped down once and hard on his leg, causing what can only be described as terrible injuries."
O'Connell was sentenced to 12 months imprisonment and Wells was sentenced to three years and four months imprisonment.
Both were made subject to a restraining order indefinitely.
