Harden finished with 37 points, Dwight Howard had 24 points with 14 rebounds and Daniels hit the game-winning 3-pointer in the closing seconds of overtime to lead the Rockets to a 121-116 win over the Portland Trail Blazers in Game 3 of this Western Conference quarterfinal series.
Daniels, who made a name for himself as a marksman this season while playing for Rio Grande Valley of the NBA's developmental league, did not play in either of Houston's losses in the first two games of this series but contributed nine points off the bench in this one.
Harden knotted the score at 116 with a 21-footer with 1:51 left in the extra session. It stayed tied until Jeremy Lin corralled a loose ball and fed Daniels on the left wing for his third trey of the contest with just 11.9 seconds remaining.
Nicolas Batum's 3-point try from the top of the key missed long, and Daniels grabbed the game's biggest rebound to secure the win for the Rockets, who still trail 2-1 in this best-of-seven series. Harden's free throws with less than a second left resulted in the final margin.
Harden broke Hakeem Olajuwon's franchise-record of 34 shot attempts, set in 1995.