The Champions League starts this week and here Press Association Sport examines what to look out for in the 2018-19 competition.

What are the highlights of the group stages?

Manchester United’s Paul Pogba will face former club Juventus in the Champions League
Manchester United’s Paul Pogba will face former club Juventus in the Champions League (Nick Potts/PA)

The competition has the potential to get off to a flying start this season with some interesting match-ups in the group stages. Indeed, some even take place this week. Liverpool’s opener against Paris St Germain is certainly eye-catching, as is Roma’s trip to Real Madrid and Valencia versus Juventus. Tottenham’s clash with Inter Milan is another to make the mouth water, coming as a reminder of some memorable encounters in 2010. Further ahead, Barcelona lie in wait for both those teams while Liverpool, last season’s runners-up, will also face Napoli. Paul Pogba’s return to Juventus with Manchester United will also attract plenty of attention when that takes place in November.

Will there be a different winner?

Real Madrid have won the last three Champions Leagues
Real Madrid have won the last three Champions Leagues (Mike Egerton/PA)

It is always difficult to look beyond Real Madrid and the Spanish giants – who have won four of the past five titles and 13 European crowns overall – will again be among the leading contenders. But this is a new era at the Bernabeu with Zinedine Zidane, the man at the helm for the successes of the past three years, and star player Cristiano Ronaldo having left. Manchester City, Barcelona, PSG, Juventus – with Ronaldo now in their ranks – and Bayern Munich are rated as the sides most likely to relieve them of their crown.

Are the likes of Manchester City and PSG ready to come of age?

Manchester City dominated the Premier League last season but fell short in the Champions League
Manchester City dominated the Premier League last season but fell short in the Champions League (Martin Rickett/PA)

Some of Europe’s established elite have been looking over their shoulders at the rise of the so-called ‘new-money’ clubs for a number of years now. Both City and PSG looked formidable as they excelled in the group stages last season but they were unable to progress much further, falling to Liverpool and Real Madrid respectively. They are not going away, however. Their ambitions are clear and they will certainly be aiming to make serious challenges.

Have there been any changes to the format?

The Champions League will see some earlier kick-offs in the group stages
The Champions League will see some earlier kick-offs in the group stages (Mike Egerton/PA)

The qualifying process may have changed – with 26 teams now gaining direct entry – but the format of the group stages remains largely untouched. The only noticeable difference concerns kick-off times. The previous uniform 7.45pm starts have been scrapped and replaced by a staggered system to suit broadcasters. On each group stage evening, two games will kick-off at 5.55pm with the remaining six at 8pm.

Will VAR be used?

It could be next season before VAR is used in the Champions League
It could be next season before VAR is used in the Champions League (Nick Potts/PA)

The video assistant referee is coming to the Champions League – but not just yet. Following the success of the system at the World Cup, it is inevitable it will be brought into UEFA’s elite competition but Europe’s governing body appear to be thinking in terms of next season. This is certainly not because of any lack of confidence in the decisions being made, but more over concerns about technical logistics and the training of officials. It has been suggested it could be brought in for this season’s final, or even from the quarter-final stage but no firm decisions have been taken.

When and where is the final?

Atletico Madrid's Wanda Metropolitano stadium will host the final
Atletico Madrid’s Wanda Metropolitano stadium will host the final (Adam Davy/PA)

The showpiece fixture will take place at Atletico Madrid’s Estadio Metropolitano on Saturday, June 1.