Last update on. From the section Women's FootballGreat Britain lost in extra time to Australia in the Olympic women’s football quarter-finals. Sam Kerr from Chelsea delivered the decisive blow that gave Australia victory.In a frenetic encounter, Ellen White of GB scored a hat trick, while Caroline Weir, a Manchester City teammate, had a penalty saved in extra-time before Australia scored twice.Kerr's 89th minute equaliser had forced an extra time before Australia teenager Mary Fowler struck heavily to stop GB's momentum following Weir’s penalty miss.Hege Riise's side was rocked when Kerr overtook Steph Houghton, the GB captain, to go for a fourth match for Australia. But White responded and set up a thrilling finale.GB tried to find an equaliser, but it didn't come. White covered her face as she crouched on the Kashima Stadium turf.Australia will play Sweden in the semi-finals.Emotional rollercoaster: GB falls shortThose watching from home felt Riise's emotional rollercoaster on the touchline as GB went through heartbreak to elation in a matter of minutes.White was also on her feet and kicked the ball into White's net when White, a Manchester City striker, pounced on a loose ball and smashed in her second goal in normal time to make GB 2-1 up.White ran away, roaring passionately at team-mates. GB was celebrating wild on the touchline.Kerr, who was in the Olympic semi-finals moments away, showed great composure and fired in a devastating equaliser to take the game to extra time.Riise was pacing on the sidelines, biting her nails, and pacing as GB regrouped – Keira Walsh's ferocious strike was tipped above the bar before White was denied in extra time.Teagan Micah, Australia's keeper, produced another moment later, diving to her right to evade Weir from a penalty.Substitute Fowler's attempt to deflect Lucy Bronze's efforts and looped around Ellie Roebuck, GB's players were crushed.Kerr rose higher then Houghton to win a fourth, and despite White's heroic efforts it wasn't enough to bring GB back in the game.White and Kerr are in the spotlightEllen White scored six goals during the tournament for GBWhite was determined to keep GB in this game, as she celebrated deliriously after Alanna Kennedy's opening-half win.Despite not touching the ball in the first period, GB's top scorer was able to make her presence felt with a brilliant looping header. She then added a second nine minutes later.She has been an important lifeline for England and Great Britain many times, but even a third goal from she - a sixth overall in tournament - wasn't enough to get them through to the semifinals.Kerr was the one who won the last word. This is yet another reason Kerr is considered to be one of the most dangerous strikers in the entire world.Australia won by a narrow margin and Kerr will be required to keep her impressive standards high when she takes on Sweden."It hits you like an earthquake" - ReactionHege Riise, Great Britain's head coach: "We are devastated right at this moment. It is hard to lose a match like this. We were prepared. We played most of the game very well."We gave up a lot of opportunities. It's possible that we should have completed a few, but it's hard."We win or lose together so there is no one to blame. We stood up for each other and fought together, but it wasn't enough. Today, we are disappointed that we didn't score the fourth goal or make it to penalties.Leah Williamson, Great Britain: "I have learned one thing in my short international career so far. It is that everything is never really over until the last whistle blows.""To score after going 4-2 up, we showed such character, so it wasn't out of reach for me. It hits you like a train at its end."We wanted to be Olympians, not just come here." We wanted to win gold. We wanted to win.Analysis: "Football is split by clutch moments"Rachel Brown-Finnis, former goalkeeper for GB, on BBC Radio 5 LiveClut moments are often what divide international football - like the saves by Micah or that miss by Caroline Weir.It's truly heartbreaking. It made me sick.Sue Smith, ex-forward for England, on BBC OneTeam GB is just too amazing to me. They gave everything they had in that game.The missed penalty changed the outcome, but Caroline Weir has had a fantastic tournament.Australia was a good team, they played their part and were able to take their time. They've been very clinical. Sam Kerr was again outstanding and they continue.Karen Carney, ex-Great Britain diplomat on BBC Radio 5 LiveIt's a huge disappointment for Team GB. Although they were amazing in the group stages, this is where it matters.Australia deserves a lot of credit. They played well and the goalkeeper made some great saves that kept them in the game.