Career
After leaving the professional tour Warren was appointed Head Coach for Donvale Tennis Club in his native Melbourne in 1983. In the decade following he discovered and coached a number of highly talented and successful junior players. Warren played Number. Team members included Noel Phillips, Ian Russell, Ron Woodbridge, Dean Ashton, Graeme Harris.
He had also beaten Wilkison in Adelaide two weeks before.
In the second round he defeated Shlomo Glickstein, 10-8 in the final set, before losing in the third round to Mark Edmondson. He also reached the third round of the 1982 Australian Open, beating Mike Barr and Tom Cain.
Doubles: (2).