Davis Cup semi-final day one: GB 0-2 Argentina
Juan Martin del Potro (Arg) beats Andy Murray 6-4 5-7 6-7 (5-7) 6-3 6-4
Guido Pella (Arg) beats Kyle Edmund (GB) 6-7 (5-7) 6-4 6-3 6-2
Sunday, 13:45 BST: Live coverage on BBC One, 5 live sports extra & online
Jamie Baker
Former GB Davis Cup player on BBC Two
That was unbelivebale. Just when you think you can't get any more drama in an Andy Murray davis Cup match he has done it again.
Del Potro is such an asset to the men's game and it is amazing to see him back on court.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-6 Del Potro
Juan Martin Del Potro, after his win over Andy Murray: "It was amazing for us. Thank you for the respect for both players. I really enjoyed the match. The crowd was great and the Argentinian fans great as well.
"I won but I still remember Olympic final. This is very important to me and my team and we are looking to reach another final in the Davis Cup.
"Against Andy you never know when the match will finish. He is a dangerous player, a fighter and great champion. In end I played good forehands and good serves and that was key.
"I am so happy to be playing tennis again after three surgeries. This kind of moment was what I was missing at home and I always play good in Great Britain and here I played great so it is a good place for my tennis."
The clock was stopped at five hours and seven minutes on that match.
Epic.
'Monstreux' indeed.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-6 Del Potro
Juan Martin del Potro is enveloped in feverish Argentine embraces.
He deserves them all. They award medals for that sort of determination and fight behind enemy lines.
Andy Murray heads towards the showers.
There is no shame in that defeat. He walked into a juggernaut and very nearly forced it off the road anyway.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-6 *Del Potro
And sealed with an ace.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 Del Potro*
John Lloyd
Former GB Davis Cup captain on BBC Two
Incredible. What a point.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 *Del Potro
The match in microcosm.
Juan Martin del Potro eventually bludgeons the chase out of Andy Murray.
Image source, ReutersMurray 4-6 7-5 7-6 (7-5) 3-6 4-5 *Del Potro
Juan Martin del Potro misses with his first serve.
Into an exchange of clubbing forehands, big brutish shots from both men, and Andy Murray is the first to bust the speakers, tweaking the power too high and going long, 30-15.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 *Del Potro
An ace from big Juan to level up. 15-15.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 *Del Potro
Juan Martin del Potro blats his first serve attempt well long. Into a rally behind his second.
Murray rips a backhand down the line. Clean as a whistle, fresh as a thistle. 0-15!
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 Del Potro*
John Lloyd
Former GB Davis Cup captain on BBC Two
Amazing. Murray did not blink.
This changeover is the calmest I have seen Murray in the full match.
It is almost as if he knows what is ahead and he is ready for it.
Murray 4-6 7-5 7-6 (7-5) 3-6 4-5 *Del Potro
Andy Murray is not going to fall on his own service sword.
He slams down another rocket serve and Juan Martin del Potro is going to have to serve out for victory.
If he can.
Image source, Getty Images*Murray 4-6 7-5 7-6 (7-5) 3-6 3-5 Del Potro
Del Potro with a tickle down the line to set up match point.
Murray with a whipcrack ace to shut the door.
*Murray 4-6 7-5 7-6 (7-5) 3-6 3-5 Del Potro
Juan Martin del Potro with a monster forehand - a superhero stroke - brings up 15-30.
Andy Murray is two points away from defeat.
The British kingpin slugs down successive aces to keep a lid on it.
He is only a whisker away from a third.
Into the net he comes behind his second serve, but Del Potro picks his spot and guides his backhand down the line.
Deuce.
*Murray 4-6 7-5 7-6 (7-5) 3-6 3-5 Del Potro
Andy Murray hammers away a volley to take the opening point.
Hope ignited.
A second-service return. Murray bets the house, but the angle he picks is a shade too tight, the top-spin revs a little too low and the ball drifts wide.
Fifteen-all.
Murray punches away a forehand volley into open court for 30-30.
Juan Martin del Potro clangs down a massive serve like one of Big Ben's bongs.
And another.
Game.
Image source, Getty Images#bbctennis
Phillippa Barnett: Nails bitten up to elbows!!!! Come on Andy
Glen H: Just in from work .... And @andy_murray gets broken immediately .... Best I go out again #BackTheBrits come on Murray
Rebekah Humphries: Pretty sure I have no fingernails left to bite.
Murray 4-6 7-5 7-6 (7-5) 3-6 3-4 Del Potro*
John Lloyd
Former GB Davis Cup captain on BBC Two
What a forehand. Incredible.
The standard of tennis in this match, it is one of the great Davis Cup matches of all time.
Murray 4-6 7-5 7-6 (7-5) 3-6 3-4 *Del Potro
Andy Murray's volley at the net...Del Potro guesses right...the Argentine stretches out a long limb and...whips a winner down the line!
A collective gulp from the home fans.
A roar from the visitors.
Argentina are two service holds away from this first rubber.
*Murray 4-6 7-5 7-6 (7-5) 3-6 3-3 Del Potro
John Inverdale
BBC commentator in Glasgow
The moment of truth may well be beckoning for Murray and Del Potro here.