Uruguay had their Argentinian-born goalkeeper Fernando Muslera largely to thank for taking them past the hosts Saturday and into the Copa America semi-finals.
Muslera made a string of fine stops, including a vital penalty shootout save from Carlos Tevez, to deny an Argentina side desperate to win their first trophy in 18 years.
The 25-year-old, who has agreed to sign for Turkey's Galatasaray after four years in Rome, says there are no divided loyalties and he knows which side of the River Plate he belongs on when it comes to international football.
"I grew up in Uruguay so I am Uruguayan," he said with a grin after saving Tevez's effort to take his side through.
"It was a dream match for us. We are really overjoyed," said Muslera.