Richard Jefferson scored with eight seconds left to steer New Jersey Nets to a 98-97 win over Toronto Raptors and a 4-2 play-off series victory. Jefferson, who also made a vital leaping steal after his winning basket, led all scorers with 24 points, while Vince Carter added 21 for New Jersey.
The dramatic victory put the Nets into the Eastern Conference semi-finals against the Cleveland Cavaliers.
"We look forward to the challenge," said New Jersey coach Lawrence Frank.
The best-of-seven series against LeBron James's second seeds starts on Sunday in Cleveland.
The other Eastern Conference semi-final pits the top-seeded Detroit Pistons against the Chicago Bulls with the first game on Saturday in Detroit.