Cristiano Ronaldo rescued Manchester United again, while Lionel Messi scored twice for Paris Saint-Germain and Liverpool beat Atletico Madrid in the Champions League this week.

Messi still reigns supreme in Europe

Paris Saint-Germain brought in Lionel Messi hoping that the Argentinian great would be the final piece of the jigsaw as they bid to finally land the Champions League title. He is yet to score in Ligue 1, but has so far done what he was signed to do by netting three times in as many games in Europe.

The six-time Ballon d'Or winner stepped up when PSG were trailing RB Leipzig in Paris, netting twice, including a Panenka penalty, to rescue a vital 3-2 win.

Real bounce back, Barcelona earn vital win

Real Madrid's Vinicius Jr scored twice to lead them to a 5-0 win at Shakhtar Donetsk on Tuesday as they put behind them their home defeat by Sheriff Tiraspol in their last Group D game. Gerard Pique scored the vital goal to earn Barcelona a nervy 1-0 win over Dynamo on Wednesday and keep alive the Spanish side's hopes of reaching the knockout rounds.

Ronaldo pulls off another escape act

For the second time in as many games in Europe, Manchester United had Ronaldo to thank for another come-from-behind victory at Old Trafford. Ronaldo grabbed the 81st minute winner with a superbly executed header to maintain his 100% scoring record in group F after three games.

Favourites Bayern, Man City in ominous form

Bayern Munich producing a scintillating four-goal burst in 15 minutes that blew away Benfica in Lisbon, while Pep Guardiola described Manchester City's 5-1 rout of Club Brugge as one of their "best performances in Europe".

Six-time champions Bayern overcame key absences -- including that of unwell coach Julian Nagelsmann -- to make it three wins from three, with 12 goals scored and none conceded.

An untimely injury to Robert Lewandowski derailed Bayern's title defence last season, when they exited on away goals to PSG in the quarter-finals. While the Poland star is back doing what he does best, the return to form of Leroy Sane has boosted Bayern even more.

As for City, who lack an out-and-out striker after being rebuffed in their pursuit of Harry Kane, Phil Foden showed he is more than capable of leading the attack as a false nine.

His outstanding display in Bruges helped City overpower a side that had drawn with PSG and then beaten RB Leipzig in Germany.

Lukaku, Werner injuries mar Chelsea's win

Chelsea were rocked by injuries to Romelu Lukaku and Timo Werner as the holders got their Champions League campaign back on track with a 4-0 win against Malmo on Wednesday.

Atletico continue run of Spanish woe

Diego Simeone led Atletico to a memorable La Liga title last season but Spanish clubs appear to not be the forces they were in recent years. His side are in danger of missing out on a last-16 place for only the second time in nine seasons after a dramatic 3-2 home loss to Liverpool, while Barcelona are struggling in their group and Real Madrid lost at home to minnows Sheriff Tiraspol last month.

Atletico, losing finalists in all-Madrid finals in 2014 and 2016, are second in Group B but level on points with third-placed Porto and have to visit Anfield next time out.

Ten Hag's Ajax dark horses again

Dutch champions Ajax raised hopes they could at least replicate their surprise run to the 2018-19 semi-finals with an impressive 4-0 dismantling of Borussia Dortmund in Amsterdam.