Trailing 94-92 with just over four minutes to play, Drew Gooden started the Washington spurt with a driving finger roll. Gooden then potted a 3-pointer, his second of the season, which proved to be the game-winner. Wall's lefty slam with 29 seconds left put an exclamation mark on the triumph.
Gooden posted season highs of 21 points and nine rebounds off the bench, while Bradley Beal donated 15 points and five assists for Washington, which has won 10-of-13 tilts dating back to Feb. 19.
The Nets, who entered the contest having won seven of eight, missed their final eight field goal attempts down the the stretch, allowing Washington to complete a three-game season sweep.
Marcus Thornton led the way with 19 points in a reserve role, while Joe Johnson and Paul Pierce netted 16 and 15 points, respectively, in defeat. Deron Williams chipped in 14 points, seven rebounds and seven assists.
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