Hussonet had been a very successful sire in Chile for Haras de Pirque where he stood for the largest fee of any stallion in the history of Chilean Thoroughbred breeding.
His first start as a four-year-old resulted in a second placing to the unbeaten Group One winner Light Fantastic in the J J Liston Stakes.
Weekend Hussler then finished twelfth behind the British racehorse All The Good in the Caulfield Cup.
Another injury (a torn off synovial pad from his off fore fetlock joint) was found after that race, and he was to miss the rest of the autumn.
He returned to racing in October 2010 with a 10th placing in the Gilgai Stakes at Flemington; however, his retirement was announced shortly after.