Yiannis Michailidis, Ph.D., is a member of the Special Teaching Staff—Soccer in the Department of Physical Education and Sports Sciences at the Aristotle University of Thessaloniki. He graduated from the Department of Physical Education and Sport Science at the Aristotle University of Thessaloniki in 2002. In 2007, he received his master’s degree in exercise and life quality from the cooperating Departments of Physical Education and Sport Science of the Universities of Democritus and Thessaly. In 2013, he received his Ph.D. from the same cooperating departments. His research interests focus on soccer training and physiology and, generally, athlete physiology. He has work experience as a soccer coach and trainer.