The 60-year-old was sentenced on Friday over the assault, which occurred in northern Victoria last year. Following the sentencing, Winmar was expected to apply for bail. That application has now been successful, with Winmar freed on bail so he can appeal the jail term.
The attack has been described as violent and unprovoked. Winmar, a celebrated figure in AFL history known for his stance against racial abuse during his playing career with St Kilda, now faces a legal battle to overturn his conviction.
Further details of the assault and the appeal process are not yet available.