Career
The back injury stalled his career and it was not until 1985 that he got an opportunity in the seniors, called up for Sydney"s round three fixture against Fitzroy at the Sydney Cricket Ground. He took four marks and had six disposals, in a 51-point loss. lieutenant would be his only league appearance.
An ankle injury, which required a reconstruction, made Kotzur retire.
He spent one year playing for Sydney Football League team Street George AFC, which were coached by another former Sydney player Steven Taubert.