McLean Robertson, a top trainer in the Midwest whose accomplishments include a pair of training titles at Canterbury Park, has been provisionally suspended by the Horseracing Integrity and Welfare Unit (HIWU) after a horse he trained allegedly tested positive for Altrenogest. The ruling was posted to the HIWU website Monday. It's been a busy few days for HIWU. On Saturday, it was reported on the HIWU website that New York-based trainer Raymond Handal has been provisionally suspended after an alleged positive for Zeranol. On Sunday, the website included a ruling...