The return fixtures will be played on May 11 and the final in Stockholm on May 24.
Barca captain Messi opened the scoring with a "Panenka" penalty chipped straight down the middle in the 17th minute after Luis Suarez was fouled in the area, putting the home side ahead in the tie after a goalless first leg in France.
Juventus's hopes of reaching the Champions League last eight suffered a blow when the two-times European Cup winners slumped to a 1-0 defeat in their last-16 first leg at Olympique Lyonnais on Wednesday. Manchester City finally produced a Champions League performance worthy of their status as one of European football's elite clubs by beating Real Madrid 2-1 away in Wednesday's last-16 first leg after pulling off a stunning late fightback.
Playing at the Parc des Princes against the team who denied them the title last year was the perfect occasion for PSG, owned by big-spenders Qatar Sports Investments since 2011, to wrap up their fifth title in the Qatari era.
While their nearest chasers lost, Olympique Lyonnais succumbing 2-1 at home to struggling Lille and Monaco falling 1-0 at Nantes after a last-gasp Lucas Lima thunderbolt, PSG marched on without ever hitting top gear.
News of all that's transpired on and off the football field
Images from Sunday's action in La Liga and Ligue 1.
A first-half double from Karim Benzema helped Real Madrid cruise to a 3-0 victory away to Cadiz that moved them top of La Liga.
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Ronaldo's replacement Dybala scored in the 77th minute with a goal the Portuguese would have been proud of. After a quick exchange of passes, the Argentine twisted past Alessio Romagnoli and beat Gianluigi Donnarumma with a right foot shot.
Neymar was in a class of his own again on Sunday, scoring a double to help Paris St Germain extend their Ligue 1 lead to 10 points with a 2-0 win at Lille. The Brazilian dedicated his goal to former Los Angeles Lakers player Kobe Bryant, who died in a helicopter crash on Sunday, by raising two fingers in one hand and four fingers with the other to signal the number 24 -- Bryant's shirt number.
Barca's Suarez in firing line after European away goals drought
PSG can exploit Bayern's high defensive line, says Rooney
Newcastle United's controversial director of football Joe Kinnear has quit seven months into a three-year deal after his second spell at the Premier League club in which they made no permanent signings for the first-team squad.
The Champions League will resume in August after being halted in March due to the COVID-19 pandemic with a 'Final Eight' tournament being held in Lisbon after the remaining second-leg games from the last 16 ties are decided.
Paris St Germain had a chance to extend their Ligue 1 lead to five points after RC Lens drew 1-1 at Troyes and Olympique de Marseille and Monaco shared the spoils on Saturday.
Images from the football matches played across Europe on Wednesday.
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'We do a lot of activities outside the pitch, maybe it's too much for some but that's how you win titles.'
The Catalans are overwhelming favourites to win the game and have an outstanding home record in the Champions League, remaining unbeaten at the Nou Camp in the competition since losing to Bayern Munich in 2013.
Barcelona lost ground on La Liga leaders Real Madrid when their 11-match winning streak was snapped by Malaga, while Premier League pacesetters Chelsea dropped points at home to Burnley. Bayern Munich enjoyed a second-successive goalrush in the Bundesliga after routing Paderborn 6-0 while AS Roma lost ground to Serie A leaders Juventus after yet another draw. This and more from the happenings in the world of football over the weekend.
While Lyon rallied to hold Leipzig 2-2 after a Memphis Depay strike, it was the English clubs who made a mark on the night. Liverpool and Chelsea moved into the last 16 with contrasting wins and now all four English clubs, including Manchester City and Tottenham Hotspur, are in the Champions League knockouts this season.
Napoli kept alive their hopes of advancing from Group C after Lorenzo Insigne, Victor Osimhen and Matteo Politano secured a 3-0 home win over Legia Warsaw.
Images from action in the Europa League matches on Thursday.
Coutinho, who arrived from Liverpool for a club record 165 million euros ($185.18 million) in January 2018, has so far shown little to suggest he will be able to compensate for Frenchman Ousmane Dembele's absence against Lyon in the UEFA Champions League tie.
Ferran Torres scored a brace and Ousmane Dembele made two assists as a red-hot Barcelona rolled over Osasuna 4-0 on Sunday to earn their fourth consecutive LaLiga win.
Paris St Germain reduced Olympique Lyonnais' Ligue 1 lead to one point after Ezequiel Lavezzi's first-half strike earned the champions a 1-0 home win over Stade Rennes on Friday.
Atletico Madrid's problems deepened as they were held to a 0-0 draw at Villarreal in La Liga on Friday, stretching their winless run to four games in all competitions.
Images from Europa League matches played on Thursday.
Goals from Jan Vertonghen and Jermain Defoe left Tottenham Hotspur on the cusp of the Europa League knockout stages as four other clubs maintained perfect starts on Thursday.
Images from Champions League matches played across Europe on Tuesday
IMAGES from soccer matches played across Europe on Sunday.
Following Angel Di Maria's nightmare stint, Bikash Mohapatra/Rediff.com says the 'Theatre of Dreams' has never been a happy a hunting ground for players from the continent
A round of Wednesday night's Champions League group stage matches.
Olympique Lyonnais and Norway forward Ada Hegerberg won the inaugural Ballon d'Or award for the best player in women's football on Monday but the moment was tarnished when DJ Martin Solveig asked her to 'twerk'
Images from matches played across European leagues on Saturday
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In other ties, Serie A champions Juventus face Europa League winners Atletico Madrid and Barcelona take on Olympique Lyonnais.
Lionel Messi dragged a nervous Barcelona to a 1-0 win at home to Levante in La Liga, while Cristiano Ronaldo converted two late penalties on his 100th appearance for Juventus in all competitions as the Serie A titleholders ground out a 3-1 win away to a dogged Genoa side.
News of all that's transpired on and off the football field.
