The list of trainers that have been informed by the Horse Racing Integrity and Welfare Unit (HIWU) that a horse they train has tested positive for the controversial drug Metformin has grown by two. According to postings on the HIWU website, Greg Foley and James Lawrence II have been notified that horses under their care had Metformin in their system. Lawrence's positive came from the horse Cherished Wish (Mshawish) in a May 23 race at Penn National in which she finished second. The Foley horse to test positive was Camaro...