Manchester United legend Ryan Giggs admits he's a big fan of Manchester City boss Pep Guardiola.
The 43-year-old Welshman has also revealed that Guardiola almost indirectly ended his career, after the Spanish coach's Barcelona side beat United in the 2009 Champions League final in Rome.
Speaking to The Daily Telegraph, Giggs said: "The first occasion I faced a Pep Guardiola team, I sat alone on the team coach after the match and for the first time in my playing career I thought seriously about retiring from football.
"That was the 2009 Champions League final in Rome, forever in my mind the lowest point of my 23 years as a professional footballer.
"My emotions were quite overwhelming at the time, but over the course of the summer they subsided, and eventually I recognised them for what they were - the extreme reaction to a defeat in the biggest game of all, a Champions League final.
"I was 35 in 2009 and I would go on to play another five seasons for United. I am glad I did not miss out on all the experiences and the three major trophies that followed."