FLUSHING Meadows shook with an explosion of deafening roars on Saturday as American sensations John Isner and Melanie Oudin sent former champions Andy Roddick and Maria Sharapova spinning out of the US Open.
On a day when Russian world number one Dinara Safina's luck and patience finally ran out, Isner and Oudin sparked off celebrations in their hometown of Georgia after showing off their "bulldog" spirit to full effect.
Big-serving Roddick came face-to-face with a 2,06m-tall player he had mentored up the ranks and as a way of thanks Isner boomed in 38 aces to trample the fifth seed 7-6 6-3 3-6 5-7 7-6.
"I'm happy for him. I'm mad that obviously it came at my expense," summed up Roddick who had hopes of going all the way this year following his runner-up finish at Wimbledon.
While number 55 Isner was delighted to pull off the biggest shock of the men's draw, Oudin followed up her win over world number four Elena Dementieva by thumping another Russian.
The 17-year-old Oudin had the honour of ringing the opening bell at the NASDAQ exchange earlier this week and her stock rose even higher on Saturday as she carved out a heart-pounding 3-6 6-4 7-5 third-round win over 29th seed Sharapova.
Isner summed up her feat as: "She plays with her heart out there. We really kind of have the same attributes. We got a little Bulldog in us. We fight really well."
Safina has long been famed for her fighting spirit and on many occasions has come from match point down to stifle her opponents.
But on Saturday, 72nd-ranked Czech teenager Petra Kvitova took a leaf out of Safina's Houdini manual and saved three match points before stamping her mark in New York with a 6-4 2-6 7-6 win.
A clearly irritated Safina then took a swipe at organisers for bumping her off the Ashe arena, where the day's schedule had over-run by almost three hours, and rescheduling her match to the smaller 10000-seat Louis Armstrong Court.
As the women's field continued to be decimated - with no seed left in the top quarter - Isner finally burst the bubble in the men's draw as until his win over Roddick, it looked as if all 16 top seeds could reach the fourth round of a grand slam for the first time.
Earlier, five-times champion Roger Federer and world number four Novak Djokovic led a parade of seeds - Nikolay Davydenko (8), Fernando Verdasco (10), Robin Soderling (12), Tommy Robredo (14) and Radek Stepanek (15) - into the second week of the hardcourt major.
Federer, seeking a 16th major here, came into the match riding on a 13-match winning streak against Lleyton Hewitt but had to snap himself out of a lull to triumph 4-6 6-3 7-5 6-4.
Federer and Hewitt are two of just three fathers ranked in world's top 50 and it was the Swiss who was caught napping in the opening set, leading John McEnroe to quip: "Looks like he slept in the same room as the (six-week-old) twins last night."
But the scorching conditions on Arthur Ashe Stadium, and Hewitt's inspired display, soon woke up top seed Federer.
It was not long before Hewitt's role turned into that of an admiring spectator as the world number one flashed and flicked away an array of spell-binding winners to seal victory.
"With a great streak I have against him, I knew that if I get back into the match then I could get back on a roll because I've had it so many times against him," said Federer, who allowed Hewitt to convert only three of his 14 break points.
Being on a roll is something American Jesse Witten had never experienced before this week.
But Djokovic rubbed his eyes in disbelief as he was almost pulled apart by a player ranked 276th and one who had never won a tour match before this week. Witten valiantly battled for almost three and half hours before succumbing 6-7 6-3 7-6 6-4.
"I have never seen him play, and then suddenly he comes up with those shots from the baseline and then returns. It was unbelievable," said the Serbian fourth seed. - Reuters