Manchester United interim boss Ralf Rangnick has defended his decision to substitute Cristiano Ronaldo after the Portuguese showed his disappointment at being hauled off during his side’s 3-1 win at Brentford.

Manchester United interim boss Ralf Rangnick has defended his decision to substitute Cristiano Ronaldo after the Portuguese showed his disappointment at being hauled off during his side’s 3-1 win at Brentford.