With Manchester United and Barcelona facing off for a second time in four years, it is tough to avoid the David de Gea error which helped the Catalan club clinch victory over their Premier League opponents in 2019.
United had made it through to the last eight with a dramatic late win against Paris Saint-Germain on away goals, while Barca cruised past Lyon with a 5-1 home win. In the quarters, though, it was one-way traffic despite Ole Gunnar Solskjaer's side impressing in Paris.
A Luke Shaw own goal was the only goal of the game in the first leg, but United had won on the road in the previous round so all was not lost. A De Gea mistake ended up costing Solskjaer's team, though, while leaving United's goalkeeping coach Emilio Alvarez with egg on his face.
