In 1995 during the drawn Anzac Day match at the MCG in front of 95,000 spectators, Monkhorst was involved in an incident that would bring enduring social change to the AFL when he was accused of racially vilifying Essendon's aboriginal wingman Michael Long. Monkhorst was required to attend a mediation session with Long and although Long was not happy with the outcome at the time, the handshake at the end of the session has since paved the way for very few racial taunts on the field, with less than half-a-dozen reported since.