PRO announced on Wednesday that Mark Geiger has been appointed as director of senior match officials, a new role in which he’ll oversee the work of officials operating at the MLS level, effective immediately. As part of the shift, Geiger – a two-time MLS Referee of the Year award winner – will retire from refereeing after an illustrious 21-year career marked by his work at two FIFA World Cups, three Concacaf Gold Cups and the Olympic Games.