MELBOURNE, AUSTRALIA - SEPTEMBER 05: Beau Muston of the Hawks marks the ball during the First VFL Semi Final match between Port Melbourne and the Box Hill Hawks at Teac Oval on September 5, 2010 in Melbourne, Australia. (Photo by Robert Prezioso/Getty Images)

Former AFL player Beau Muston’s career at the Hawks didn’t work out, due mainly to three knee reconstructions.

However, his injury riddled past didn’t stop the current coach of the Frankston Bombers in the Nepean League in Victoria chase down and tackle a man who allegedly attacked a security guard.

Muston witnessed the attack take place outside his clothing store, Caminha, in Shannon Mall.

The security guard fell heavily and broke his leg, before the suspect fled on foot.

Muston then took off after the man, tackling him to the ground and making a citizen’s arrest.

“There were so many bystanders and no one was doing anything so I ran over and got this bloke in a headlock, just restrained him,” Muston told the Frankston Leader.

“I was like, ‘can you get more security, someone do something, can you call the police?’” Police were soon on the scene and the suspect was taken away. The security guard suffered two fractures to his leg and underwent surgery last week.

“I just couldn’t do nothing.

“He (the security officer) was in a bad way and he (the offender) just ran away. You can’t just do what you did and get away with it.”

Muston played 13 games for Hawthorn after being selected with pick No.22 in the 2005 National Draft.