Good evening. The best sport - the really, really good stuff - needs precisely no hype. Welcome to live coverage of Manchester United v Barcelona at Old Trafford.

Tiki taka tiki taka tiki taka. It's all Barcelona in terms of possession, though Rashford looks sharp on the counter-attack for United.

Luis Suarez is getting booed ever time he touches the ball. This isn't really news, is it?

Pogba plays a superb angled through pass to Rashford, who is just beaten to the ball 20 yards from goal by the sweeper-keeper Ter Stegen.

Lots of early possession for Barcelona, with Messi dropping deep to dictate play.

Rashford smashes the free-kick a few yards wide of the far post. Ter Stegen only had one man in the wall, which is interesting. Moments later, Young is also very lucky not to be booked for a sliding foul on Coutinho.

Busquets flattens McTominay 25 yards from goal and is very lucky not to get a yellow card. The free-kick is slightly to the right of centre...

It's been a strong start from Barcelona, with a couple of early corners. Diogo Dalot is playing as a left wing-back for United, with Luke Shaw as a third centre-back. That's interesting.

Peep peep! Barcelona, in their yellow away kit, get the match under way.

The two captains shake hands. Rumours that Lionel Messi asked Ashley Young who he is are unconfirmed.

The Barcelona players look very relaxed in the tunnel; they are all smiling and joking with David De Gea. The rest of the United team look serious/terrified (delete as appropriate).

The players are ready, and so is Gary Neville.

That's all.

Ole Gunnar Solskjaer speaks "We need to improve on the first leg against PSG. It’s down to us to try to dominate the game. If we let them dominate, we’re in for a hard night. That’s part of the battle, to take control of the ball. Rashy has been ill but he’s fine and hopefully he’ll last as long as I can. He lives for nights like this."

It's strange, given their domestic dominance and general brilliance, that Barcelona have reached only one Champions League final since winning it in 2011. That was in 2015, when they beat Juventus 3-1 to win the competition. They have gone out in the quarter-finals in every season since then. But it would be a major surprise if that happened again this year.

This is excellent: former Manchester United Darren Fletcher on the near-unplayable genius of Lionel Messi.

Despite handing Manchester United a few hidings down the years, Barcelona have never won at Old Trafford. They lost 3-0 in 1984, drew 2-2 in 1994 and 3-3 in 1998, and then lost 1-0 in 2008.

What did we do before emojis?

The winner of this tie will play Liverpool or Porto in the semi-finals. Just imagine if Ole Gunnar Solskjaer wins the Champions League by beating PSG, Barcelona, Liverpool and Manchester City in the knockout stages.

Messi, Busquets and Pique are the only survivors from that game, although Chris Smalling had the fortune to be an unused substitute.

The last time these sides met - not counting the Intercontinental Champions Cup - was in the 2011 Champions League final, when Barcelona took pity on United and declared at 3-1. It was the defining performance of one of the greatest club sides of all time.

And I'm sure the home fans will give him a rousing reception on his big night.