Fabrizio Margheritini is an orthopaedic surgeon internationally recognized for his expertise in knee surgery and, specifically, PCL and multiple ligamentous reconstructions. He holds the position of Assistant Professor in the Department of Health Science, Unit of Sports Traumatology, University of Rome, Italy. Dr. Margheritini has previously worked in the Sports Medicine Departments of the Cleveland Clinic Foundation and the University of Pittsburgh (USA), the Hip and Knee Unit of the Cambridge Lea Hospital (UK), Zayed Military Hospital Abu Dhabi (UAE), and the International Knee and Joint Center Abu Dhabi and Ain Al Khaleeja Hospital Al Ain (UAE). He is a Past-President of the Sports Committee of the Italian Society of Knee Surgery, Sports Medicine, Arthroscopy, and Technologies (SIGASCOT) and a member of the Education Committee of ISAKOS. He is also an honorary member of the American Orthopaedic Society for Sports Medicine (AOOSM). He serves in the Editorial Board of the KSSTA andCurrent Review in Muscoloskeletal Medicine journals. Dr. Margheritini is the author of more than 100 scientific articles and abstracts as well as three books. João Espregueira-Mendes, MD, PhD, has been Professor of Orthopaedic Traumatology and Chairman of the Orthopaedic Department at Minho University, Portugal, since 2005. In addition, he is Director of Clínica do Dragão - Espregueira-Mendes Sports Centre - FIFA Medical Centre of Excellence, FC Porto Dragão Stadium, Porto, Portugal. His further posts include Orthopaedic Surgeon of FC Porto and Senior Researcher in Biomaterials, Biodegradables, and Biomimetics in the Department of Polymer Engineering at Minho University. Dr. Espregueira-Mendes was President of the European Society of Knee Surgery, Sports Trauma and Arthroscopy (ESSKA) from 2012 to 2014 and he is Treasurer and Chairman of the Publication Committee of ISAKOS. He is a member of the editorial board of Knee Surgery, Sports Traumatology, Arthroscopy. Alberto Gobbi, MD, is a board-certified surgeon and specialist in Orthopaedics and Traumatology and in Sports Medicine, he works in Milan Italy and in San Diego USA. Honorary professor at Beijing University in China and visiting professor at Kobe Japan, Seoul Korea and Singapore. Dr. Gobbi performs scientific, surgical, and educational activities at a national and international level. He is currently President of the International Cartilage Regeneration & joint preservation Society (ICRS) and he is member of the Board of Directors of ISAKOS. Dr. Gobbi holds various positions within some of the most prestigious medical societies in the fields of orthopedics, arthroscopy, sports medicine, and scientific research. GHe is the President of OASI Bioresearch Foundation Gobbi Onlus, a non-profit organization accredited by the Italian Ministry of Health and recognized as an International Teaching Center by ISAKOS and ICRS. The OASI Foundation promotes research into cartilage, joint aging, and sports lesions through a network of collaborators from all over the world. He wrote several books and has been an editorial board member and reviewer for a number of leading journals in the field.