Arsenal vs Barcelona live: follow latest from Champions League Last 16 tie at the Emirates Stadium

Follow all of the latest from the crucial Last 16 first leg fixture

The Emirates Stadium before kick-off (Getty Images)

Follow all of the latest news and live updates from tonight's crucial Champions League Last 16 first leg tie between Arsenal and Barcelona at the Emirates Stadium.

• The match kicks off at 7.45pm
• Barca have won four of their seven meetings with Arsenal
• Lionel Messi has never scored against Petr Cech in six meetings
• Arsenal talisman Alexis Sanchez left Barca for Arsenal in 2014
• Barca are eight points clear at the top of La Liga
• Also tonight, Juventus host Bayern Munich

Follow the latest here:

Arsenal manager Arsene Wenger said this week that he will have a "little word" with Alexis Sanchez to make sure the forward is in the right zone to inflict pain on former club Barcelona.

The Gunners face a daunting task when they come up against the reigning European champions in the opening leg of their Champions League first knockout round at the Emirates Stadium.

Wenger's men have fallen at this hurdle in the previous five seasons and many will expect that to become six as the collective attacking talents of Lionel Messi, Luis Suarez and Neymar are unleashed in north London.

One player who could have been lining up for Tuesday's visitors is Sanchez - but the Chile international instead was sold to Arsenal in the summer of 2014.

He has since flourished under Wenger, becoming an integral member of a side which has won back-to-back FA Cups and remain in the hunt for three trophies this season.

But, while Wenger admits the 27-year-old will be keen to show his former employers what they are missing, the Frenchman wants Sanchez to manage his temperament on a big night for the club.

"He will be fired up, but that doesn't mean he will be in the right zone," Wenger said.

"The performance zone is where you are focused and relaxed and that is what is difficult in sport.

"Sometimes when you are too focused you are not relaxed, so it's a zone where everything looks easy and sometimes when you play against your former club you are not necessarily in that zone."