New York Red Bulls were one of four Major League Soccer clubs to exit the Lamar Hunt US Open Cup in the fourth round, as they were annihilated in their first ever meeting with the New York Cosmos.
The Cosmos were the United States’ most successful team during the 1970s – with stars such as Pele, Franz Beckenbauer, Carlos Alberto and Johan Neeskens on their roster – but are competing in the Open Cup for the first time.
They ran out comfortable 3-0 winners at Shuart Stadium, though both sides were missing key players with Marcos Senna, Thierry Henry and Tim Cahill all absent.
Mike Petke still selected a strong Red Bulls lineup – including MLS top-scorer Bradley Wright-Phillips – but were blown away by their hosts.
Mads Stokkelien fired a brace and Alessandro Noselli grabbed the other, while Chris Duvall was sent off late on for a disgraceful high challenge on Sebastian Guenzatti.
The North American Soccer League champions will now travel to the Philadelphia Union, who fought back to beat the Harrisburg City Islanders 3-1 in Jim Curtin's first game in charge.
Elsewhere, holders DC United crashed out of the competition after a 1-0 defeat to another New York outfit - the Rochester Rhinos - in a match delayed by stormy weather.
The Monroe County minnows' 1999 cup success was the last time any club outside of the MLS won the trophy, and they can now look forward to a tie with the New England Revolution - the Massachusetts side edged a tight affair 3-2 against 2011 semi-finalists Richmond Kickers.
At Silverbacks Park, beaten NASL Soccer Bowl finalists Atlanta Silverbacks came from behind to stun high-flying Real Salt Lake.
Kwadwo Poku netted a 92nd minute winner to set up a fifth round meeting with the Colorado Rapids - Pablo Mastroeni's men having ran out 5-2 victors over future MLS franchise Orlando City, aided by a hat-trick from form man Deshorn Brown.
Meanwhile, the Carolina RailHawks knocked out Chivas USA for the second consecutive year – this time winning a farcical penalty shoot-out after a 1-1 draw.
LA Galaxy will now make a trip across the country to Carolina, having conquered Arizona United 2-1.
Though Indy Eleven's Blake Smith fired a chart-topping fourth goal of the tournament, they slipped to a 2-1 loss against nine-man Columbus Crew. The Ohio club can look forward to a face-off against the Chicago Fire, who eased past the Pittsburgh Riverhounds.
Top tier pair Houston Dynamo and FC Dallas will face each other in the next round, having beaten respective opponents Laredo Heat and the San Antonio Scorpions.
There will also be an all-Western Conference clash between Seattle Sounders FC and the San Jose Earthquakes, who saw off PSA Elite - previously the only remaining first-round entrants - and Sacremento Republic FC.
The Sounders' rivals Portland Timbers progressed thanks to a delightful Gaston Fernandez double against Orlando's amateur U23 side. 2012 winners Sporting Kansas City will be their next opponents, after victory over Minnesota United.