Based on the 'Italian Consensus Conference (2019) on return-to-play after lower limb muscle injury in football', it provides a list of RTT and RTP criteria after such injuries compiled by orthopedic surgeons, sports physicians, radiologists, rehabilitation physicians, sport physiologists, general surgeons, family physicians, physiotherapists, physical trainers and psychologists working in elite football in Italy.

The book identifies the main criteria for RTT and RTP following injuries involving the most important muscle groups, i.e. quadriceps, hamstring, hip adductor, hip external rotator, iliopsoas and soleus-gastrocnemius.

Alessandro Corsini is the Team Doctor at F.C. Internazionale Milano (Serie A) since 2014. He was the team physician for A.C. Rodengo Saiano, Feralpi Salò and Leonessa Handball and he is still referring physician for many other teams and professional athletes. From 2007 to 2014 he collaborated with the Medical Commission of the Italian Winter Sports Federation (FISI), providing medical assistance to the national Alpine Ski Team during World Cup races. He is member of the Italian Federation of Sports Medicine and Vice President of Sport Medicine Committee of the Scientific Society SIAGASCOT. He is actually President of the Sport Medicine Association of Brescia.

Piero Volpi became Director of Knee Surgery and Sport Traumatology Unit at Istituto Clinico Humanitas - IRCCS, Milan, Italy in 2010. He was a Teaching Professor at the Specialty School of Orthopaedics and Traumatology, University of Milan. His interests include sport traumatology, arthroscopic surgery, knee surgery and cartilage repair. He was President of SIA (Società Italiana di Artroscopia) and Secretary of EFOST (European Federation of National association of Orthopaedic Sport Traumatology). He was a member of the Sports Committee of ESSKA (European Society of Sports Traumatology Knee Surgery and Arthroscopy) and President of the Sports Committee of SIGASCOT (Societa' Italiana Ginocchio Artroscopia Sport Cartilagine e Tecnologie Ortopediche), where he is also a member of the Executive Committee and President of the Scientific Committee. He is currently Head of Medical Staff at F.C. Internazionale Milan. He has been the physician responsible for the Italian Association Football Players (AIC) since 2000 and is a member of the UEFA Medical Committee.