Waller points to feed in drugs probe A leading feed company will be represented when Sydney's premier trainer, Chris Waller, faces a Racing NSW stewards' inquiry in relation to four positive tests to the non-steroidal anti-inflammatory ibuprofen on Friday. Waller will argue that the feed was contaminated in the barn where Seuss, Jade Marauder, which tested positive twice, and Arinosa were stabled. "We have been in contact with the feed company, and they have indicated that a representative will be available to attend on Friday," Racing NSW chief steward Ray Murrihy said. There is a lot of evidence from samples of feeds and different horses in the stable. Ibuprofen is found in over-the-counter pain-relief products Nurofen and Advil, but is rarely used in horses. The first positive test to ibuprofen was returned by Seuss after he won at Gosford on February 14, and was followed by Jade Marauder at Rosehill on February 16. Arinosa tested positive after winning the listed Wenona Girl Quality at Warwick Farm on March 16. The same day Jade Marauder produced a second positive sample. "We have been working with stewards, once we became aware of the situation," Waller said. It appears to be feed contamination and it was only in one of our barns. When we had one [irregularity], we had no idea where it had come from, but as soon as we had two we started to put things together. As soon as we became aware of the problem the horses stopped racing until they were cleared by testing. I'm confident the feed was the problem, but we have to go and front stewards and explain our case. Waller has won the Sydney trainers' title for the past two years, and is on track to break the most wins in a season in Sydney, jointly held by Tommy Smith and Gai Waterhouse at 156 winners. Boban took Waller's tally of winners for the season to 127½ at Warwick Farm on Thursday, and it is unlikely Waller would face a suspension or disqualification for the positives. Recently, ibuprofen positives have resulted in trainers being fined and the horses disqualified. Stewards have conducted a wide-ranging investigation into the positive samples with the co-operation of the Waller stable. They took samples of feed from Waller's stable on three occasions, on March 19, 20 and 25. Out-of-competition samples were collected from seven other horses from the barn in question on March 20.