We all remember how Pep Guardiola’s sides humbled Sir Alex Ferguson’s United teams in the 2009 and 2011 Champions League finals.
We also recall the wonder goal from Paul Scholes that sent Barcelona out and United into the 2008 final.
But usually when players retire and hang up their boots, past rivalries are forgotten. Even the fiercest ones. Roy Keane had a sit-down interview with Patrick Vieira and Gary Neville and Jamie Carragher are big pals on Sky Sports Monday Night Football.
But former Barca captain – and winner of both those Champions League wins – Carles Puyol left way too much in on Phil Neville in the Star Sixes legends tournament at the O2 this week. Take a look at this:
That’s got to hurt.