Chelsea will progress to the next round of the Club World Cup after a 4-1 victory over Benfica - though, the scoreline does not tell the whole story of the game.
Reece James opened the scoring via a free kick, before the match was halted due to concerns over adverse weather conditions - with delays lasting nearly two hours.
Chelsea emerged from the interval convinced of their victory, but Benfica had other plans - finding the equaliser from the penalty spot and forcing extra time.
After the Portuguese side picked up a red card, the Blues took full advantage - with goals from Christopher Nkunku, Pedro Neto and Kiernan Dewsbury-Hall putting the result beyond doubt.
Bruno Lage will feel hard done by, but will be proud of his team's resilience and confidence to remain in the game for so long.
Chelsea will face Palmeiras in the quarter-finals, where London-bound winger Estevao will get the chance to play against his new teammates.
Story of the match
Chelsea head coach Enzo Maresca has opted to experiment and rotate heavily during this competition, and named an intriguing starting eleven - Romeo Lavia, Moises Caicedo and the in-form Enzo Fernandez all begun in the centre of midfield, moving Cole Palmer to a wide position.
They would face their trickiest test thus far in Benfica - currently unbeaten in this tournament, they topped Group C after a 1-0 win against Bayern Munich.
Angel Di Maria and Nicolas Otamendi are two of the more senior players in this Benfica team, but they have established themselves as important pieces of the puzzle, as well as fantastic reference points for the rest of the team. Both looked to make an impact in this game.
Chelsea were electric from the first whistle - a direct ball into the path of Pedro Neto resulted in a fiery shot across goal, which was eventually collected by goalkeeper Anatoliy Trubin.
Palmer and Enzo looked to play as inside midfielders, with Palmer occupying the left hand side of attack. Pedro Neto and Marc Cucurella held the width in a 3-2-5 shape.
Di Maria looked to build patient attacks, often dropping deeper into midfield to help progress the ball. Striker Vangelis Pavlidis was gifted a shooting chance in Chelsea's box, but Levi Colwill was on hand to cut out the danger.
Benfica's centre backs were given a real test - Nicolas Otamendi was well positioned to block an Enzo Fernandez volley, before Marc Cucurella's curled effort was headed off the line by Antonio Silva. The young defender immediately celebrated the clearance, as it would have been a certain goal without his intervention.
It was arguably all Chelsea in the opening half-hour - the Blues pressing well and working off the ball to create passing moves. Benfica struggled to progress through the midfield pivot of Romeo Lavia and Moises Caicedo, and were forced to play long balls in behind to their wingers.
Several big chances for the Portugese side came via turnovers and interceptions, and Bruno Lage will have wanted his side to force their opponents into more errors, while being more accurate with their passing when on the counter-attack.
Chelsea carried on their dominance after a first half water break, and Marc Cucurella had another goalscoring chance denied - this time it was the keeper Trubin who made himself big, managing to deflect the strike with his right hand.
Benfica left-back Samuel Dahl then made a tremendous attacking run which caught the Blues napping at the back, but a touch took the ball out of play for a goal kick. Another quick switch of play failed to find left-winger Andreas Schjelderup, with the Blues able to mop up the danger.
At the other end, Liam Delap was having a fair few lapses in concentration, with some misplaced passes and miscommunications with his teammates as he continues to settle into life at Chelsea.
There was a nasty collision between midfielders Moises Caicedo and Leandro Barreiro as the first half came to a close. Caicedo stayed down for a longer period, but eventually rose to his feet, much to the relief of Chelsea fans.
Both managers will have had positives to take from the first half, though Chelsea may feel slightly frustrated given their dominance had not resulted in a single goal thus far.
There was only one change at the beginning of the second period as Benfica made a swap at left wing - Kerem Aktürkoğlu replacing Schjelderup.
A flowing Chelsea move nearly resulted in an immediate goal, but Otamendi showed great reading of the game to intercept a Cole Palmer cross. He, alongside Silva and Trubin, had been particularly tricky to get past in this game.
Lage's side were showing signs of improvement, too, and were committing more bodies forward as they pressed the attack. Robert Sanchez almost spilled a cross into his own net, before Silva did tremendously to keep Cole Palmer at bay, as he ran out of room in the Benfica box.
Their resilient defending meant the Blues would have to find other routes to goal - and they did just that through Reece James, who's whipped effort bested the goalkeeper at his near post to give Chelsea the lead.
It forced Benfica into a more attacking rhythm, as they knew a goal was required to keep them in the competition.
Pavlidis had a great chance after being played through on goal, but Benoit Badiashile stuck with his marker and stood firm to win the ball back. The Frenchman felt something in his hamstring following the clearance, and exited the game as a result.
With just over ten minutes to play, Benfica threw everything at the Chelsea defence, but lacked a clinical edge in the box and placed several shots well wide of the target. Liam Delap then had the ball in the back of the net at the opposite end, but the linesman's flag was raised for offside.
Looming bad weather meant an interruption to the match, with players, staff and fans advised to exit the stadium and shelter themselves from possible thunderstorms.
Play was halted for around ninety minutes - a thirty minute timer was restarted whenever thunder struck within a certain radius of the stadium, in accordance with FIFA's safety rules and to ensure supporter wellbeing.
The delay was not ideal, but both teams were quick to emerge and participate in a condensed warm-up session, before officials resumed the match.
Benfica came out of the interval with energy, pressing their opponents and playing with urgency to try and force extra time. Chelsea were happy to see out the game, dropping into a back five and defending deep.
There was late drama in added time as Malo Gusto was penalised for a handball in the box, resulting in a penalty for Benfica. From the spot, Angel Di Maria sent Robert Sanchez the wrong way, gifting his team an equaliser.
Emotions ran high into extra time, with Benfica susbtitute Gianluca Prestianni given back to back yellow cards, ejecting the midfielder from the game and reducing his team to ten. Palmer was also booked after a small melee with the player.
The game became very end to end with even chances from both sides. Chelsea looked to push their player advantage and create overloads in attack whenever possible.
Enzo Maresca pleaded for a penalty after Christopher Nkunku went down in the box, but the referee did not see enough contact, and the calls were waved away.
The Frenchman would get his goal soon afterwards with some great persistence, firing high into the roof of the net after an initial clearance. Otamendi, who had been solid all game, was brave to put his body on the line, but couldn't prevent the goal as Chelsea staff, players and coaches erupted into celebration.
Benfica's decision to commit bodies forward allowed Chelsea plenty of space in behind their defence - with Pedro Neto and Kiernan Dewsbury-Hall adding a third and fourth goal respectively, getting the better of goalkeeper Trubin in a one on one.
The Blues looked to run down the clock in the final few minutes, seeing out the victory and securing a well-fought win over Benfica in a truly crazy game of football.
Player of the match - Antonio Silva
Antonio Silva's defensive showing in regular time will give head coach Bruno Lage plenty of things to be excited about heading into the upcoming season.
His partnership with captain Nicolas Otamendi was rock solid - not to mention his fantastic goalline clearance in the first half, preventing Marc Cucurella's effort.
Silva kept tabs on Cole Palmer and nullified the number 10 creatively, and although the scoreline may tell a different story, his performance deserves a lot of credit.