Ronaldo, Messi, Sheriff and Salah: Five big stories from the Champions League

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It was a very eventful two nights of Uefa Champions League action this week, with shock victories, big-name goal scorers and even bigger score lines.

Read on to find out what happened around Europe in the most prestigious club competition in the world.

Record-breaking Ronaldo

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Image caption, Ronaldo celebrates with his team-mates after scoring the winner

Manchester United left it late as Cristiano Ronaldo scored his 136th goal in the Champions League - a last-minute winner against Villarreal.

It was an important 2-1 win for the Red Devils, who had lost their first game against Young Boys.

Ronaldo, who is the all-time leading goal scorer in the competition, has now set the record for all-time Champions League appearances.

The game at Old Trafford was his 178th appearance, stretching over 19 seasons.

The 95th minute goal was also the latest Manchester United have scored a winner in the competition, beating the previous record set by current manager Ole Gunnar Solskjaer in 1999.

Champions beaten!

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Chelsea lost their first Champions League game since being crowned winners of the competition last season.

Playing in Italy against Juventus, the Blues lost to a goal scored by Federico Chiesa - just 10 seconds after the half time break.

A big victory for a small club

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Image caption, Sheriff players Dimitris Kolovos and Giorgos Athanasiadis celebrate their incredible victory in Madrid

Who are the team called Sheriff?

You may never have heard of Sheriff Tiraspol before Tuesday night, but they produced one of the biggest upsets in Champions League history by beating 13-time winners Real Madrid!

Sheriff were already the first ever Moldovan side to reach the group stage of the Champions League, but they went one step further by beating one of the most successful clubs in the world.

Midfielder Sebastien Thill, who's from Norway, won the game for the visiting side with a stunning half-volley in the 89th minute, sending his team-mates wild with celebrations at the final whistle.

Messi off the mark for PSG

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Image caption, That's a lot of goals... Messi, Neymar and Mbappe are considered one of the most intimidating front lines in football.

Elsewhere, one of the world's best players scored his first ever goal for his new team.

When Paris St-Germain signed Lionel Messi from Barcelona back in August, they would never have guessed they would be waiting more than a month for him to score his first goal for them.

But the superstar striker helped his new side to victory against Premier League champions Manchester City on Tuesday evening,

Having played for Barcelona since he was 13, it was the first professional goal he had scored for any other club.

The 34-year-old has teamed up with fellow world superstars Kylian Mbappe and Neymar to take PSG top of Group A, sinking Man City into a dangerous position at risk of not reaching the knockout stage.

Liverpool dominate in Porto... again

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Image caption, Liverpool have scored three or more goals in six consecutive matches for only the third time in the club's history

Meanwhile, Liverpool scored a whopping five goals against Portuguese side Porto, with their own superstar front three of Mo Salah, Sadio Mane and Roberto Firmino all scoring.

The Reds have an impressive record against Porto having never lost to them in the Champions League, with 4-1, 5-0 and 2-0 wins in recent games.

Another standout player in Jurgen Klopp's side was 20-year-old Curtis Jones, who was involved in four of Liverpool's five goals, teeing up Firmino for his second of the evening.

The Reds also remembered one of their biggest legends - striker Roger Hunt - who was in the England team that won the 1966 World Cup and whose death at 83 was announced on Tuesday.