Chelsea were on their way to a surprise 1-0 victory over Barcelona in the first leg of their last 16 Champions League tie on Tuesday night until Andreas Christensen made a mistake.

The 21-year-old defender played the ball across his own goal in an attempt to reach Cesar Azpilicueta, but Andreas Iniesta latched on first.

The midfielder then set up Lionel Messi, who slotted the ball home to score his first goal against Chelsea.

In the end, the tie was drawn 1-1, with Barcelona leaving with an advantage due to the away goal.

https://video.footballfancast.com/video-2015/earliest-plwins.mp4

Overall, Antonio Conte's side performed well and may even feel slightly disheartened to concede.

Willian was the man to nudge the Blues ahead with a second-half strike that made up for the two earlier attempts that rattled off the post.

Understandably, the fans were talking about Christensen's error on Twitter, with some criticising the defender's naivety, while others cut him some slack.