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LOS ANGELES, CA - JULY 10: Striker Romelu Lukaku (2nd R) and Paul Pogba #6 of Manchester United laugh as manager Jose Mourinho looks on during training for Tour 2017 at UCLA's Drake Stadium July 10, 2017, in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

LOS ANGELES, CA - JULY 10: Striker Romelu Lukaku (2nd R) and Paul Pogba #6 of Manchester United laugh as manager Jose Mourinho looks on during training for Tour 2017 at UCLA's Drake Stadium July 10, 2017, in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

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LOS ANGELES, CA - JULY 10: Romelu Lukaku of Manchester United in action during a first team training session as part of their pre-season tour of the United States of America at UCLA on July 10, 2017 in Los Angeles, California. (Photo by John Peters/Manchester United via Getty Images)

LOS ANGELES, CA - JULY 10:  Romelu Lukaku of Manchester United in action during a first team training session as part of their pre-season tour of the United States of America at UCLA on July 10, 2017 in Los Angeles, California.  (Photo by John Peters/Manchester United via Getty Images)

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LOS ANGELES, CA - JULY 10: Striker Romelu Lukaku (R) and Midfielder Paul Pogba #6 of Manchester United during training for Tour 2017 at UCLA's Drake Stadium July 10, 2017, in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

LOS ANGELES, CA - JULY 10: Striker Romelu Lukaku (R) and Midfielder Paul Pogba #6 of Manchester United during training for Tour 2017 at UCLA's Drake Stadium July 10, 2017, in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

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LOS ANGELES, CA - JULY 10: Romelu Lukaku of Manchester United drinks water during training for Tour 2017 at UCLA's Drake Stadium on July 10, 2017 in Los Angeles, California. (Photo by Harry How/Getty Images)

LOS ANGELES, CA - JULY 10:  Romelu Lukaku of Manchester United drinks water during training for Tour 2017 at UCLA's Drake Stadium on July 10, 2017 in Los Angeles, California.  (Photo by Harry How/Getty Images)

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LOS ANGELES, CA - JULY 10: Romelu Lukaku of Manchester United trains for Tour 2017 at UCLA's Drake Stadium on July 10, 2017 in Los Angeles, California. (Photo by Harry How/Getty Images)

LOS ANGELES, CA - JULY 10:  Romelu Lukaku of Manchester United trains for Tour 2017 at UCLA's Drake Stadium on July 10, 2017 in Los Angeles, California.  (Photo by Harry How/Getty Images)