Marta left the field in tears after being sent off for a dangerous high tackle during Brazil's 2-0 defeat to Spain in their final Group C game at the Olympics.

The Brazil great narrowly missed Olga Carmona's head with an out-of-control attempt to reach the ball in first-half stoppage time, receiving a straight red card in what could turn out to be her final-ever Olympic game.

Brazil needed a win to secure a place in the knockout rounds, but now they face a nervous wait to see if they will be one of the two best third-place teams in the last eight – a match they would have to play without their captain.

Athenea del Castillo eventually got the breakthrough after 68 minutes, before Alexia Putellas scored in the 107th minute to ensure they stayed perfect to top the group.

It was a dominant performance by La Roja, who created an expected goals tally of 2.75 from 27 shots compared to Brazil's 0.3 from 10 efforts.

Spain will face the best third-place team from either Group A or B in the quarter-final on Saturday.

Meanwhile, Japan also secured a spot in the knockout rounds with an emphatic 3-1 victory over Nigeria.

Japan stunned Brazil in the second group game and continued their momentum by getting the job done in the first half.

Maika Hamano and Mina Tanaka put them 2-0 up before Jennifer Echegini pulled one back for Nigeria.

However, Hikaru Kitagawa's strike just before the break restored Japan's two-goal cushion and held onto that lead to set up a meeting with the winners of Group B in the next round. 

Chelsea advanced to the quarter-finals of the Champions League with a game to spare after an own-goal from Real Madrid goalkeeper Mylene Chavas handed them a 2-1 win at Stamford Bridge.

Emma Hayes’ side looked to be facing the awkward prospect of requiring a result next week away at Paris FC when Real substitute Athenea del Castillo tapped in on the rebound, reacting quickest after goalkeeper Hannah Hampson had beaten out Hayley Raso’s effort with 20 minutes to play.

A penalty earlier in the second half from Guro Reiten had seemingly put Chelsea en route to the win they required.

But after the visitors had hit back it fell to Erin Cuthbert, wearing the armband with Millie Bright still absent, to lead by example, sending over a cross that bounced in off the unfortunate Real goalkeeper.

Chelsea’s first chance fell to the left foot of Cuthbert, drilled low against the legs of Chavas after Fran Kirby had found her with a deft through ball.

Jess Carter drilled a searching pass to the left flank that was helped on by Niamh Charles, rampaging forward from full-back, into the path of Reiten. She hit an audacious, dipping effort that was just clawed out from underneath the crossbar.

Real threatened through Colombia international Linda Caicedo, tricking her way in behind Kadeisha Buchanan and looking to poke it beyond Hampton from a devilish angle. The goalkeeper, making her Champions League debut, instinctively threw up a strong right hand and beat the ball away.

Reiten set up Cuthbert, who swung and missed her kick with the goal gaping, before the Scotland international and stand-in captain crossed to the near post to present Mia Fishel with seemingly an easy finish, but she could only guide it wide.

Hayes sent on Lauren James, fresh from her weekend hat-trick, at the break as her side searched for the goal that would seal a last-eight berth, whilst the precocious 18-year-old Caicedo, injured during the first half, was withdrawn by Real boss Alberto Toni.

Anything less than a win and qualification for Chelsea would go to the final matchday, a result likely needed away at impressive Champions League debutants Paris, twice conquerors of Real in this season’s competition.

The goal to radically alter that equation arrived just past the hour. Melanie Leupolz’s pass split Real’s defence and ran through to Cuthbert, arch-tormentor of her opposite number Kenti Robles.

The full-back’s challenge was a mess, scything Cuthbert to the ground. From the spot, Reiten put one Chelsea foot in the quarter-finals.

James looked to seal it with a goal all of her own making, cutting in from the right and standing up two defenders before racing beyond them and clipping a shot towards the near post that was brilliantly deflected away by Chavas.

Then all of a sudden, Chelsea switched off. There seemed little on for Real when the ball was pinged up to Raso, high up on the right of the box but with Charles in her path and only Athenea to aim for.

Instead she looked to do it herself, blasting low at goal, her shot beaten out by Hampson but into the path of the substitute who tapped home.

Fortune smiled on Hayes’ team almost at once, their lead restored within a minute when Chavas lost concentration at the critical moment and fumbled Cuthbert’s cross over her own line.

Sweden joined Spain’s players in a show of solidarity before Mariona Caldentey’s stoppage-time penalty gave the world champions a 3-2 Women’s Nations League victory as the scandal surrounding Spanish football rumbled on.

The two sets of players held a banner carrying the phrase “Se acabo” – meaning “it’s over” in English – as well as “our fight is the global fight” before the game in Gothenburg.

The game, a rematch of the World Cup semi-final, was Spain’s first outing since they beat England 1-0 to become world champions in August.

After the final, then president of the Spanish football federation (RFEF) Luis Rubiales kissed forward Jenni Hermoso on the lips during the post-match celebrations. Hermoso said the kiss was not consensual, subsequently filing a legal complaint, and the incident has plunged the RFEF into crisis.

Both Rubiales and World Cup-winning manager Jorge Vilda have already left their posts, and even after kick-off on Friday the federation announced on social media that director of integrity Miguel Garcia Caba has also been axed.

Spain’s players had threatened a boycott of this fixture, only calling that off on Wednesday after reaching an agreement with the federation, and their disrupted build-up perhaps showed as they fell behind in the 23rd minute when Magdalena Eriksson scored following a Sweden corner.

But Athenea del Castillo levelled seven minutes before the break, and Spain led when substitute Eva Navarro scored in the 77th minute, moments after she had replaced Del Castillo.

Lina Hurtig levelled for Sweden eight minutes from time but Spain had the final say in a dramatic finish.

Amanda Ilestedt brought down Amaiur Sarriegi in the box and, after the Sweden defender was sent off, Caldentey dispatched the penalty to seal the three points.