Manchester United's Belgian striker Romelu Lukaku applauds supporters on the pitch after the English Premier League football match between Southampton and Manchester United at St Mary's Stadium in Southampton, southern England on September 23, 2017.
Manchester United won the game 1-0. (AFP)

Manchester City's Fabian Delph, right, scores his side's fifth goal of the game, during the English Premier League soccer match between Manchester City and Crystal Palace, at the Etihad Stadium, in Manchester, England, Saturday, Sept. 23, 2017. (AP)

Real Madrid Dani Ceballos celebrates scoring their second goal with Real MadridCristiano Ronaldo (L) and team mates (Reuters)

Real Madrid's Dani Ceballos celebrates with teammates after scoring against Alaves during the Spanish La Liga soccer match between Real Madrid and Alaves, at Mendizorra stadium, in Vitoria, northern Spain, Saturday, Sept.23, 2017. (AP)

Girona's defender Juanpe Ramirez (C) vies with Barcelona's forward from Argentina Lionel Messi during the Spanish league football match Girona FC vs FC Barcelona at the Montilivi stadium in Girona on September 23, 2017. (AFP)

Liverpool's Mohamed Salah, left, and Leicester City's Ben Chillwell vie for the ball during the Premier League soccer match. Leicester City versus Liverpool at the King Power Stadium, Leicester, England, Saturday Sept. 23, 2017. (AP)

Liverpool's Mohamed Salah celebrates scoring their first goal with Roberto Firmino, Emre Can and Joe Gomez (Reuters)

Crystal Palace's Timothy Fosu-Mensah, left, and Manchester City's Leroy Sane battle for the ball during the English Premier League soccer match between Manchester City and Crystal Palace, at the Etihad Stadium, in Manchester, England, Saturday, Sept. 23, 2017 (Reuters)

Crystal Palace's Timothy Fosu-Mensah, left, and Manchester City's Leroy Sane battle for the ball during the English Premier League soccer match between Manchester City and Crystal Palace, at the Etihad Stadium, in Manchester, England, Saturday, Sept. 23, 2017 (AP)

FC Barcelona's Lionel Messi, Luis Suarez, center, and Aleix Vidal celebrate a goal during the Spanish La Liga soccer match between Girona and FC Barcelona at the Montilivi stadium in Girona, Spain, Saturday, Sept. 23, 2017 (AP)

Manchester United's Nemanja Matic in action with Southampton's Mario Lemina (Reuters)