''But according to a study written by orthopaedic surgeon Timothy Hewett and
Christian Nagelli in 2017, "A young athlete (under the age of 20) who returns to sport within one vear is 15 times more kely to suffer a second ACLiniury than a healthy athlete with no medical history of a knee injury". Another study, conducted in 2005 at the University of Sydney, suggested that athletes of all ages were six times more likely to sufter a reoccurrence. ''