Liverpool legend Jamie Carragher has recalled the telling message that legendary former Manchester United manager Sir Alex Ferguson said to him ahead of a testimonial match. Sir Alex Ferguson’s legendary managerial career came to an end in 2013 after he secured Manchester United’s last Premier League title in the 2012-13 campaign. The 82-year-old enjoyed incredible success during his 26-year reign in the Premier League, which included leading United to 13 league titles under his rule. Following Ferguson’s retirement, Manchester City boss Pep Guardiola and Liverpool manager Jurgen Klopp have b…