It's our first meeting with the Catalan club since 2019, and the first time we've ever faced them in the Europa League after previous meetings in the Champions League and European Cup Winners' Cup.
Barcelona dropped into this competition having finished third in their Champions League group, while United were edged into second in our Europa League group on goal difference by Real Sociedad, despite a 1-0 win in San Sebastian on matchday six.
Lisandro Martinez picked up a booking during that game, which was played at the start of November, and that means he'll be ruled out of this clash.