Barcelona, September 14: FC Barcelona and Bayern Munich shone in their opening matches of the Champions League football tournament with resounding victories over Celtic and FC Rostov respectively.
Atletico Madrid posted a solid away win and Paris Saint-Germain had to settle for a draw at home, reports Efe.
The highly anticipated match between Manchester City and Borussia Monchengladbach was postponed till late Wednesday due to a flooded pitch amid torrential rain in the English metropolis.
Star striker Lionel Messi's first hat-trick of the season powered Barcelona to a 7-0 win over the visitors from Glasgow.
Fellow goal scorer Luis Suarez contributed a pair of goals and the home side got one apiece from Neymar and Andres Iniesta.
Barcelona goalkeeper Marc-Andre ter Stegen also played his part, stopping Moussa Dembele on a penalty kick when the score was only 1-0.
In Munich, Bayern trounced Champions League newcomer FC Rostov 5-0, getting two goals from young defender Joshua Kimmich.
Robert Lewandowski put Bayern ahead 1-0 with a penalty in the 28th minute and Thomas Muller doubled the lead with a goal in first-half stoppage time.
Kimmich scored his pair in a span of seven minutes early in the second half and Juan Bernat rubbed salt into the Russian club's wounds with a goal in the 90th minute.
Atletico Madrid, last season's runner-up, beat PSV Eindhoven 1-0 thanks to Saul Niguez's goal in the 43rd minute.
PSG's Edinson Cavani scored inside the first minute of the match at Parc des Princes stadium against visiting Arsenal to give his squad a 1-0 lead.
The hosts outplayed the visitors, but could not get a second goal, and Alexis Sanchez equalised for the English club in the 78th minute.
Basel fell behind at home to Bulgaria's Ludogorets, who took a 1-0 lead just before courtesy of Jonathan Cafu, and the Swiss team needed a goal from Renato Steffen in the final 10 minutes to salvage a draw.
Arkadiusz Milik scored two goals to lead Napoli to a 2-1 come-from-behind away victory over Dynamo Kiev, who got a goal in the 26th minute from Denis Garmash.
Benfica jumped out to an early lead at home over Turkey's Besiktas with a goal in the 12th minute by Franco Cervi, only to let the visitor pull even on Anderson Talisca's strike in the 93rd minute.
Barca meanwhile could face fresh sanctions from UEFA after thousands of separatist Catalan flags were again flown at the Camp Nou.
The Spanish champions were fined 150,000 euros ($170,000) by UEFA because of the flags during last season’s competition.
