Former Juventus team doctor Fabrizio Tencone says he'd recommend signing Roma midfielder Nicolo Zaniolo.
Zaniolo is being linked with Juve, though there's concerns about his past knee injuries.
Tencone told Tuttosport: "The financial investment is obviously an evaluation that is the managers' responsibility, the task of the doctor is to evaluate the current state of health and try to predict the future one.
“If I were the club doctor, I would do a very accurate examination, because everything always starts with a manual examination, and I would do a series of specific tests, an X-ray, MRIs of the knees and certainly a series of tests to measure the recovery of leg strength.
“In addition, there is a very important and innovative test called 'movement analysis test' to understand if the athlete has any 'motor strategies; that may increase the risk of injuring his knees.
“Honestly, we don't know the exact percentage of risk of getting hurt a third time. Science tells us that after a cruciate ligament injury the chance of the same injury occurring, on the same knee or the other, is 15-20%.
“And the risk rises to 25-30% in young footballers, under 20 years old. But there is no evidence that has measured the risk of getting injured a third time.
“The player is young, he certainly has great fortitude and has come through the second operation well. So I wouldn't doubt Zaniolo's tenacity."
He concluded: “I'd recommend going ahead… with the medical examinations. But I would never dare to say no a talent. We know of perfectly recovered cases and Zaniolo deserves all the attention."