Valencia, Aug. 25: Barcelona fought back from two goals down at newly-promoted Levante to win 3-2 on Saturday, while Atletico Madrid dropped more points from a winning position.
First-half goals by Ivan Romero and Jose Luis Morales gave Levante a shock lead against the champions in Valencia, before Pedri and Ferran Torres struck twice in quick succession after half-time to level the match.
Hansi Flick's side looked destined for a draw on a near-waterlogged pitch until an Unai Elgezabal own-goal in injury time gave them a second win to start the new season.
"They made it very difficult for us, we have to improve a lot," Flick told his post-match press conference.
Diego Simeone's Atletico are still without a win this season after they drew 1-1 with promoted Elche, leaving them on one point after two frustrating outings.
Just like in their 2-1 loss at Espanyol last weekend, Atletico went ahead in the first period at the Metropolitano on Saturday.
Alexander Sorloth raced onto David Hancko's perfectly-weighted ball into the left channel, before slotting past the advancing goalkeeper on eight minutes.
But Rafa Mir got Elche back on level terms on the quarter-hour with a crisp finish at the end of a lighting counter-attack.
Earlier, Mallorca and Celta Vigo shared the spoils when Mateu Morey's late leveller for the home side cancelled out Javi Rueda's first-half opener.
Gyokeres scores for Arsenal
Viktor Gyokeres scored his first Arsenal goals on a day of intent from the Premier League team, before and during its 5-0 thrashing of Leeds on Saturday.
The statement victory was preceded by the unveiling of new signing Eberechi Eze, whose move from Crystal Palace was confirmed as Gunners fans were taking their seats at the Emirates Stadium. The England international got a great reception when he was presented to the crowd in the moments before kickoff.
Jurrien Timber opened the scoring after 34 minutes from a corner for set-piece specialist Arsenal before Bukayo Saka doubled the home side's advantage on the stroke of halftime.
Gyokeres bounced back from missing an easy chance in the opening period to score on his home debut three minutes into the second half, powering into the Leeds penalty area before sending a low right-footed shot past Lucas Perri.
Saka and Martin Odegaard were both forced off with injuries but spirits were raised again when Timber landed his brace shortly before the hour mark.
Max Dowman, aged 15 years and 235 days, delivered an impressive second-half cameo from the bench when he became the second youngest player — after Ethan Nwaneri — to represent Arsenal. And the teenager capped an eye-catching display by winning a penalty for his side in stoppage time which Gyokeres duly converted.
Tottenham continued its flying start to the Premier League season under new coach Thomas Frank as Brennan Johnson and Joao Palhinha secured an impressive 2-0 victory at Manchester City.
Dango Ouattara scored on his debut to give Brentford a 1-0 win over Aston Villa.
Bournemouth also picked up its first points of the season with a 1-0 win over Wolverhampton, which played almost the entire second half with 10 men after defender Toti was sent off for pushing over Bournemouth forward Evanilson.
Jaidon Anthony set up the opener for Josh Cullen and scored the other goal himself as Burnley beat fellow promoted team Sunderland 2-0 for its first points back in the top flight.
Napoli makes strong start
Kevin De Bruyne scored on his Napoli debut on Saturday as the Serie A champions kicked off their title defence with a straightforward 2-0 win at promoted Sassuolo, while Luka Modric and AC Milan fell to a shock 2-1 home defeat to Cremonese.
The headline signing of the summer transfer window in Italy, De Bruyne opened his account for Napoli in the 57th minute when his free-kick swept in from the left flank and evaded everyone before nestling in the far corner.
De Bruyne made sure Napoli would get off to a winning start to the new season in Reggio Emilia after Scott McTominay continued where he left off from last season with a bullet header in the 17th minute.
Federico Bonazzoli ruined Modric's first Milan start with a stunning scissor kick just after the hour mark which sank the hosts and delighted the loud contingent of Cremonese fans who made the trip to the San Siro.
Whistles and boos rang out from home supporters at the final whistle as Milan were hit by two sucker punches from Bonazzoli and Federico Baschirotto, who opened the scoring with a glancing header in the 29th minute.
Milan were level at the break through Strahinja Pavlovic's header in the final moments of the first half but Massimiliano Allegri's team failed to capitalise on chances created early in the second period and were punished by Bonazzoli who gave Cremonese their first ever win over Milan at the San Siro.
Leverkusen stumble in Ten Hag debut
Bayer Leverkusen let a one-goal lead slip to lose 2-1 at home to Hoffenheim in new coach Erik ten Hag's Bundesliga debut on Saturday.
Taking over from Xabi Alonso in the summer and overseeing a radically restructured side after several high-profile exits, the former Manchester United boss cut a frustrated figure on the sideline.
Leverkusen hit the lead after six minutes when Jarell Quansah, who arrived from Liverpool this summer, headed in an Alex Grimaldo free-kick.
Hoffenheim, who finished just one spot above the relegation placings last season, levelled with 25 minutes played, Fisnik Asllani taking advantage of a defensive error from Quansah.
Tim Lemperle put the visitors ahead after 52 minutes. He was given too much time by Leverkusen's defence and skidded a low shot into the corner of the goal.
Leverkusen lost just three league games in the past two seasons, often saving points with the clock winding down, but there would be no late heroics. The defeat showed the scale of the rebuild Ten Hag has on his hands.
Borussia Dortmund gave away a two-goal lead with five minutes remaining to collapse to a 3-3 draw at St Paul, losing debutant centre-back Filippo Mane to a red card.
In the box seat for an opening-day win at 3-1 after goals from Serhou Guirassy, Waldemar Anton and Julian Brandt, Mane gave away a penalty and was sent off in the 85th minute for holding Abdoulie Ceesay in the box.
After Daniel Sinani converted from the spot, St Pauli went immediately on the attack and levelled things up just three minutes later, Eric Smith drilling a long-range effort into the top corner.
With 10 minutes of stoppage time awarded, the hosts looked the most likely to score, but Dortmund just held on, for a point.