Rasmus Hojlund scored twice for ten-man United, the second a magnificent effort in which the 20-year-old took advantage of Davinson Sanchez’s error to gallop 50 yards and beat Fernando Muslera with a clever finish.
However, the hosts’ lead lasted only 10 minutes, as old-boy Wilfried Zaha and then Kerem Akturkoglu equalized.
After Mauro Icardi failed to score the penalty that followed a dreadful Andre Onana error that resulted in Casemiro’s red card, the Argentine made amends nine minutes from time when he sprinted clear of the hosts’ defense and found the finish.
It is the first time United has opened a Champions League group stage with consecutive defeats, adding to the pressure on manager Erik ten Hag, whose team is bottom of the table, four points behind their visitors, who are second, four points behind Bayern Munich.
Following Saturday’s Premier League home defeat by Crystal Palace, United has now lost two in a row, five of their last seven games, and six of ten in all competitions this season.
