River Plate came from behind against South American champions San Lorenzo to move top of the Argentine Primera Division.
Goals from Leonardo Pisculichi, Teofilo Gutierrez and Lucas Boye cancelled out Mauro Matos' opener as River prevailed 3-1 against the Copa Libertadores title holders on Sunday.
San Lorenzo's woes were compounded after they were forced to play the final 12 minutes a man down - and were down to nine with four minutes remaining - as Juan Mercier and Mauro Cetto were sent off at the Estadio Pedro Bidegain.
River opened up a one-point lead atop the summit with 13 points from five matches after Velez Sarsfield's perfect start to the season came to an end as they lost 3-1 at Boca Juniors.
San Lorenzo - second from bottom in the table - made a dream start to proceedings in front of their own fans when Matos opened the scoring after six minutes.
River were caught on the break as Hector Villalba squared the ball to an unmarked Matos inside the penalty area and the veteran striker made no mistake from close range.
The home side were pegged back just six minutes later following Pisculichi's half-volley from outside the box.
It got better for River after half-time as they added two unanswered goals through Gutierrez and Boye.
Colombian attacker Gutierrez made it four goals in three games when he tapped the ball home from inside the six-yard box a minute shy of the hour-mark.
And one minute after Mercier was shown a straight red card, Boye headed home to double the visitors advantage.
To make matters worse for San Lorenzo, Cetto was shown a second yellow card with four minutes remaining.
It was an identical scoreline at the Estadio Alberto Jacinto Armando - commonly known as La Bombonera - on Monday as Boca made a winning start under new coach Rodolfo Arruabarrena.
Arruabarrena - winner of four trophies with the club during his playing days - was named coach of Boca after Carlos Bianchi was sacked on Thursday and it appeared to work wonders as they defeated Velez courtesy of second-half goals from Daniel Diaz, Cesar Meli and Andres Chavez.
Velez's slip up opened the door for Newell's Old Boys, who closed to within a point of second spot thanks to a 1-0 win at home to Estudiantes on Saturday.
Mauricio Tevez's 71st-minute strike proved the difference as Newell's preserved their unbeaten start to the season.
In other results, fourth-placed Rosario Central accounted for lowly Defensa y Justicia 3-1.
Rosario are level on nine points with Arsenal, Independiente and Racing Club.
Arsenal edged 10-man Banfield 1-0, while Independiente upstaged Racing 2-1 with all three goals scored during the first half.
Belgrano notched their first win of the season, routing Atletico Rafaela 3-0.
Gimnasia La Plata were also winners for the first time after Jorge Rojas and Javier Mendoza inspired them to a 2-0 victory over Godoy Cruz.
Meanwhile, Tigres and basement club Quilmes played out a goalless draw.
|2||M. Cetto||44' 86'|
|Coach: E. Bauza|
for G. Verón 26'
for M. Matos 50'
for N. Blandi 68'
|No pain, no gain for Cristiano Ronaldo|
|Barcelona have no idea how to treat players - Dani Alves slams Camp Nou board|
|Low: Germany´s youngsters must be good enough to beat Messi and Ronaldo|
|Mandorlini replaces Juric at Genoa|
|Liverpool could face ´new´ Leicester – Klopp|
|Corchia excited by Bielsa arrival but Lille future remains uncertain|
|Wenger: I threw up after first loss as coach|
|Conte wants fairytale finish for Terry|
|Iniesta: Barcelona haven´t lost faith in Luis Enrique|
|Mourinho knew Ibrahimovic would be ´massive´ for United|
|Ter Stegen doesn´t understand Barcelona fans whistling|
|´He is doing a fantastic job´ – Bartomeu backs Luis Enrique|
|Guardiola slams ´unacceptable´ Wenger treatment|
|Spalletti: Roma goal machine Dzeko now believes he´s world class|
|Emery refuses to blame referee after PSG are held|
|Montella dedicates AC Milan win to Berlusconi|
|The players don´t need whistles – Luis Enrique hits out at fans|
|Brazilian game called off due to TV dispute|
|Chelsea are already Premier League champions, says United boss Mourinho|
|Barcelona 2 Leganes 1: Late Messi penalty spares Ter Stegen´s blushes|
|Paris Saint-Germain 0 Toulouse 0: Champions spill valuable points|
|AC Milan 2 Fiorentina 1: Deulofeu strike keeps European hopes alive|
|Attitude got Man United through - Mourinho|
|Roma 4 Torino 1: Dzeko strikes again|
|Lincoln face Sutton or Arsenal in FA Cup quarter-finals, Chelsea host Man United|
|Neuer slams Jarstein after brawl|
|Blackburn Rovers 1 Manchester United 2: Substitutes Pogba and Ibrahimovic combine for late winner|
|Inter insist Perisic going nowhere, rule out move for Verratti|
|Borussia Monchengladbach 1 RB Leipzig 2: Forsberg and Werner reignite title bid|
|Training-ground meetings paid dividends - Pochettino|
|I´m trying to find a team - Berbatov open to offers|
|Inspired by Zeman´s return, Pescara hammer Genoa 5-0|
|Gabigol wants to make history after Inter breakthrough|
|Chievo 1 Napoli 3: Sarri´s men bounce back from Champions League disappoitment|
|Alfonso Perez calls for Pique to quit international football over political beliefs|
|Benatia refuses to question Allegri´s decisions|
|Fulham 0 Tottenham 3: Kane hat-trick fires Spurs into quarter-finals|
|Oblak return boosts Atletico ahead of Leverkusen trip|
|Gabigol and Inter ready to feast on success after late winner|
|Bologna 0 Inter 1: Gabigol gets belated lift-off in Serie A|
|Still no Mascherano or Arda for Barcelona|
|Bielsa appointed Lille boss from next season|
|Janssen determined to make the grade at Tottenham|
|Stones missing Kompany influence at Manchester City - Ferdinand|
|Central Coast Mariners 0 Melbourne Victory 3: Muscat´s men cruise to win|
|David Villa sent off after video replay|
|Favre not blaming Balotelli for latest red card|
|´It is my future at stake´ – Isco could leave Real Madrid|
|Smalling desperate for Ibrahimovic stay|
|´He will be here for sure´ - Mourinho rules out Shaw exit|
|Wenger not ready for retirement, wants Arsenal stay|
|Pogba will soon look cheap, claims Manchester United boss Mourinho|
|Casilla defends under-fire Navas|
|Isco ´happy and committed´ at Real Madrid – Zidane|
|Middle finger gesture was because I was spat at - Ancelotti|
|Leicester must learn from Millwall´s ´gladiators´ – Ranieri|
|Sevilla 2 Eibar 0: Sampaoli´s side move up to second|
|Lorient 0 Nice 1: Balotelli sent off as visitors go second|
|Too early to talk about Chelsea double – Conte|
|Conte delighted with Chelsea´s fringe players|
|Foreign players don´t expect cup upsets – Terry|
|Bale eyes top form and titles after scoring on Real Madrid comeback|
|Watzke received death threats after Leipzig match|
|Wolves 0 Chelsea 2: Pedro and Costa send Conte´s men through|
|Zidane reveals what he whispered to Bale before comeback goal|
|Dardai hits out at ´Bayern bonus´ after late equaliser|
|Ancelotti adamant Bayern deserved controversial equaliser|
|Ronaldo was not getting anxious, insists Zidane|
|Kompany injury not serious, says Manchester City boss Guardiola|
|Kompany injury not serious, says Manchester City boss Guardiola|
|Ranieri: 10-man Millwall were better than us|
|Piszczek represents everything Borussia Dortmund stand for - Tuchel|
|Championship Review: Brighton back top, Wednesday capitalise on Norwich slip|
|´Vamosss!!!´ - Bale ecstatic after scoring on Real Madrid return|
|Favourites tag weighed heavily on Burnley in Lincoln loss, says Dyche|
|Simeone delighted with Gameiro´s ruthless cameo|
|Millwall 1 Leicester City 0: Cummings wins it for 10-man Lions|
|Middlesbrough 3 Oxford United 2: Stuani rescues Boro after minute of mayhem|
|Real Madrid 2 Espanyol 0: Bale scores on comeback as hosts extend lead|
|Huddersfield Town 0 Manchester City 0: No pep from Guardiola´s men in cup stalemate|
|Hertha Berlin 1 Bayern Munich 1: Lewandowski rescues champions with last kick|
|Barton denies trying to force Rhead red and accuses Lincoln of play-acting|
|Borussia Dortmund 3 Wolfsburg 0: Piszczek stars with Yellow Wall absent|
|Cowley brothers marvel at Lincoln´s FA Cup heroics|
|Violence in the stands mars Tigres victory|
|Raggett ´lost for words´ after sending Lincoln into FA Cup quarter-finals|
|Gameiro dedicates hat-trick to grandmother|
|Burnley 0 Lincoln City 1: Raggett puts non-league heroes in FA Cup dreamland|
|Gameiro hits fastest LaLiga hat-trick in 22 years|
|Big-money signing Krychowiak to play with PSG reserves|
|Sporting Gijon 1 Atletico Madrid 4: Stunning Gameiro hat-trick snatches victory|
|A-League Review: Derby defeat for Sydney, Melbourne City cruise to victory|
|Barcelona results ´irrelevant´ to Luis Enrique´s future|
|Montella backs Donnarumma for Ballon d´Or|
|Bournemouth congratulate Arter on birth of daughter|
|Loftus-Cheek confident his Chelsea chance will come|
|Rashford still part of Mourinho´s plans - Brown|
|Klopp confirms Liverpool transfer plans are already underway|
|No chance of Jesus joining Inter, says agent|
|Dani Alves: If anyone can come back, it´s the Barcelona machines|
|Purslow stepping down from Chelsea role|
|Redknapp: Tottenham will win Premier League within four years|
|Buffon one of the greatest of all time - Casillas|
|Winning over happiness for Chelsea´s Conte|
|Manchester City can still win Premier League - Gundogan|
|Ferdinand backs Keane to re-sign with United like Pogba|
|Pochettino: Janssen must do more at Tottenham|
|Marotta: Juve signing Verratti unrealistic|
|Guardiola: I will never return to Barcelona|
|Allegri jokes ´how is my English?´ as Arsenal rumours intensify|
|We did not play well – Juventus hero Dybala fires Porto warning|