Chelsea get their Champions League defence under way tonight against Zenit St Petersburg.

They beat Manchester City in last season's final and Thomas Tuchel says the feeling of winning is addictive.

"Nothing is like belief," said Tuchel.

"When you do the last step nothing compares.

"It really changes something for everybody. The most important [thing] is not to look back, but keep the feeling and the hunger.

"It is addictive, this game is about winning because it changes the atmosphere and feeling and gives you natural confidence."

Image source, Getty Images

Michael Brown
Former Man City midfielder on BBC Radio 5 Live

Man Utd were not good enough on the ball in the second half. They were under constant pressure and the mistake is incredible.

You are thinking 'why do you have to make that pass', they had not been overplaying for the whole half.

Full credit to Young Boys they had kept the pressure on, composed finished from Siebatcheu and they got what they deserved.

One more comment actually on this game, which completely turned on Aaron Wan-Bissaka's 35th-minute red card.

United didn't have a single shot on or off target after the 25th minute. They only saw 30.7% of the ball in the second half.

It was a fully deserved win for Young Boys.

United equal their club Champions League record of three consecutive defeats, set from December 2004 to March 2005.

Image source, Getty Images

Sevilla drew 1-1 with Red Bull Salzburg in the early game. Four penalties in the first half (Salzburg missed two), but none in the second.

These are the 20:00 BST games.

• Barcelona v Bayern Munich
• Dynamo Kyiv v Benfica
• Chelsea v Zenit St Petersburg
• Malmo v Juventus
• Lille v Wolfsburg
• Villarreal v Atalanta

Right, better build-up to the late games now - as well as any good reaction from the Wankdorf.

At 19:19 Nathan messaged in to say about three dropped points for United and I asked if he knew something I didn't.

Turned out he did.

Lottery numbers please, Nathan.

Nathan: Obviously I do know something you don’t. You cannot go down to 10 men in the CL away from home, fail to string 5 passes together, make constant glaring errors and not lose. I know that, don’t you? (I bet this doesn’t get posted!)

Bruce Ha: We didn't get through last year due to losing last 2 matches while only needing 1 point Surely it's a self-imploding disastrous start, but there are still plenty of chances.

RegularJon: Nice to see we’ve learnt from the Istanbul game last season. Well done boys

Michael Brown
Former Man City midfielder on BBC Radio 5 Live

Remarkable! The joy, it is unbelievable scenes!

A huge mistake from Jesse Lingard that lets Jordan Siebatcheu in, he puts it to De Gea's right into the corner, a composed finish to win the game for Young Boys.

Wow. The celebrations were understandably huge as Young Boys scored that with all the subs running onto the pitch to celebrate too.

That was the last kick. It's all over.

OH MY. OH MY.

Young Boys sub Wilfried Kanga beats his man on the wing but nobody is in the centre to get onto his cross.

United are halfway through injury time. It's attack v defence.

Young Boys bring on Wilfried Kanga and Cedric Zesiger for Sandro Lauper and Meschak Elia as they go for a winner.

Michael Brown
Former Man City midfielder on BBC Radio 5 Live

This has been something different for Man Utd. A different battle and they have been put right under pressure. If they come away from this with a draw you would say they have got away with one.

Five minutes added on. Young Boys will be the happier team with that news.

Anthony Martial does have a touch and controls it out of play for a throw-in.

United bring on Anthony Martial for Fred. Will Martial even get a touch the way the visitors are playing?