The Oklahoma City Thunder scored nine unanswered points in the last two minutes to open up a 2-0 lead against the Los Angeles Lakers.
The late rally helped the Thunder claim a thrilling 77-75 win and move a step closer to the conference final.
Kevin Durant scored five of those, including the go-ahead jump shot with 18.6 seconds remaining, as the Thunder fought back from 75-68 down with 2:08 to play.
Durant scored 22 in total and Russell Westbrook 15, while James Harden, who had the other four points in the closing moments, contributed 13 from the bench.
The Lakers will have the chance to narrow the gap back in Los Angeles on Friday.
Kevin Garnett and Paul Pierce dominated the Philadelphia 76ers to give the Boston Celtics a 107-91 win and a 2-1 lead in their Eastern Conference semi-final series.
Garnett poured in 27 points and grabbed 13 rebounds, while Pierce had 24 points and 12 boards as the Celtics took control of the series in Philadelphia.
Thaddeus Young led the Sixers' offence with 22 points.
The series heads back to Boston for game four on Friday.
