MANCHESTER, ENGLAND - AUGUST 12: David de Gea of Manchester United looks on during a first team training session at Aon Training Complex on August 12, 2016 in Manchester, England. (Photo by Matthew Peters/Manchester United via Getty Images)
MANCHESTER, ENGLAND - AUGUST 12: Paul Pogba and Marcus Rashford (R) of Manchester United share a joke during a first team training session at Aon Training Complex on August 12, 2016 in Manchester, England. (Photo by Matthew Peters/Manchester United via Getty Images)
MANCHESTER, ENGLAND - AUGUST 12: Paul Pogba of Manchester United in action during a first team training session at Aon Training Complex on August 12, 2016 in Manchester, England. (Photo by Matthew Peters/Manchester United via Getty Images)
MANCHESTER, ENGLAND - AUGUST 12: Paul Pogba of Manchester United in action during a first team training session at Aon Training Complex on August 12, 2016 in Manchester, England. (Photo by Matthew Peters/Manchester United via Getty Images)
MANCHESTER, ENGLAND - AUGUST 12: (L-R) David de Gea, Juan Mata, Marcos Rojo and Ander Herrera of Manchester United share a joke during a first team training session at Aon Training Complex on August 12, 2016 in Manchester, England. (Photo by John Peters/Manchester United via Getty Images)
