Albert Bell scored in the second minute of stoppage-time to give Samoa a 3-2 win over the Cook Islands on the opening day of Oceania qualifying for the 2014 World Cup.
Strikers Luki Gosche and Campbell Bell traded goals as Samoa twice took leads and as the Cook Islands twice battled back to parity in a tense match.
Gosche gave Samoa a 1-0 lead when he ran onto a reverse pass from Desmond Fa'aiuaso and beat Cook Islands goalkeeper Iona Lupena.
Lupena made amends when he first saved a penalty from Fa'aiuaso and, when the referee ruled the keeper had impeded the shooter, saved the second penalty attempt from Silao Malo.
Campbell Best equalised after Paavo Mustonen's curving free-kick was saved by Samoa's Masi Toetu but Samoa immediately regained the lead with Gosche's second goal after a mistake in defence.
A low volley from Campbell Best locked the scores a 2-2 after 85 minutes but Albert Bell's scrambled goal in extra-time gave the host victory.
Earlier, Ramin Ott and Shalom Luani scored goals as American Samoa beat Tonga 2-1 in the first match of the round-robin tournament. Ott put American Samoa ahead with a speculative long-range shot in the 43rd minute and Luani sealed the win when he lobbed Tonga goalkeeper Kaneti Falela in the 74th minute.
Tonga pulled a goal back three minutes before full-time when Unaloto Faeo headed home a cross from Lafaele Moala.
Only one of the four teams contesting the first round will progress to the next stage in Oceania qualifying, which involves seven other teams - including 2010 World Cup qualifier New Zealand - playing a tournament at Fiji next June that doubles as the 2012 OFC Nations Cup.
The top four teams from the OFC Nations Cup will advance to the third and final round of Oceania qualifying for Brazil 2014.