Champion jockey Chris Johnson could face a suspension after being stood down from riding at Riccarton yesterday for failing a breathalyser test.
Johnson is just 10 wins away from becoming New Zealand's most successful jockey for domestic wins but was tested by stewards after riding in the first race and then stood down for the remainder of the meeting.
Johnson rode Aquattack in the first race at Riccarton - at 12.05pm - leading the $12 outsider to third place before he was stood down.
The local training duo of Matthew and Michael Pitman had to turn to stand-in rider Lee Callaway, who took his first victory since December after filling in for Johnson.
Michael Pitman had no hesitation in booking Callaway once Johnson was made unavailable and was full of praise for his handling of the lightly raced eight-year-old Turncoat, who Pitman had labelled earlier in the day as a solid winning chance.