(cnn)john isner could not keep the united states in the davis cup on sunday, so it was likely small consolation that his incredible tennis milestone remained unbeaten while the american lost to andy murray in scotland, putting great britain into the quarterfinals of the prestigious teams event, halfway across the world an absorbing battle was playing out between two of south america's most bitter rivals in the end it didn't come close to matching isner's 11 hour marathon against nicolas mahut at wimbledon in 2010, but the fourth rubber in the clash between argentina and brazil made its own piece of history for six hour and 43 minutes, leonardo mayer and joao souza contested the second longest singles match in tennis historyand third longest of any format after a seven hour doubles clash between switzerland and the czech republic in 2013 mayer eventually triumphed, after his 11th match point, winning 7 6 (7 4) 7 6 (7 5) 5 7 5 7 15 13 in front of a delirious home crowd in buenos aires to send the tie to a deciding rubber it set the scene for federico delbonis to take on brazil's thomaz bellucci in the deciderwith the winner to earn a clash with novak djokovic's serbia, a 5 0 victor over balkan rival croatia delbonis had won the first set 6 3 when play was halted for the day due to bad light the match will resume on monday meanwhile, back in glasgow, the british team celebrated after earning a home quarterfinal clash with france on july 17 19, the weekend after the completion of wimbledon 'it was an incredible experience,' said world no 5 murray, who beat isner 7 6 (7 4) 6 3 7 6 (7 4) in two and a half hours to give his team a 3 1 lead and ensure a repeat of the result of last year's first round clash between the two nations 'playing in front of a home crowd is a bit more pressured, especially today, but i managed to fight my way through the first set and played really well after that' it was the second defeat of the tie for the big serving isner, who lost a five hour five setter against james ward on friday the swiss, without leading players roger federer and stanislas wawrinka, crashed out at the first hurdle with a 3 2 defeat in belgium canada makes their way into the quarterfinals for the second time in three years after beating japan 3 2 vasek pospisil led the tie break victory by defeating go soeda in straight sets on sunday canada will face belgium in july, after wimbledon concludes france, beaten by switzerland in last year's final, went through after beating germany 3 2losing both of sunday's meaningless singles rubbers having already secured victory in the doubles 24 hours earlier australia conquered three time champion czech republic, a semifinalist last year, with bernard tomic clinching victory in the fourth rubber against lukas rosol seeking a 29th title, but first since 2003, the australians will next host kazakhstanwhich defeated italy 3 2 as aleksandr nedovyesov overcame fabio fognini in a five set decider after trailing 2 1
six hours 43 minutes leonardo mayer serbia belgium davis cup britain third kazakhstan john isner france first andy murray argentine us joao souza australia
leonardo mayer beats joao souza in longest davis cup singles match  argentine wins in six hours 43 minutesthird longest in tennis history  britain beats us in first round, with andy murray defeating john isner  france, australia, kazakhstan, belgium, serbia also reach quarterfinals 