HONG KONG - JULY 21:  (THE SUN OUT, THE SUN ON SUNDAY OUT) Trent Alexander-Arnold of Liverpool gets treatment off Andy Renshaw Head of Physiotherapy and Andrew Massey Head of medical services as Jurgen Klopp manager of Liverpool looks on during a training session on July 21, 2017 in Hong Kong, Hong Kong.  (Photo by Andrew Powell/Liverpool FC via Getty Images)