Parramatta Eels hurt Manly Sea Eagles' NRL finals chances
With the loss at Brookvale Oval, the Sea Eagles stayed ninth " two points adrift of the St George Illawarra Dragons with two games remaining in the regular season.
Semi Radradra crossed for a first-half double for the Eels, taking his tally to 21 tries in 2015.
The hosts managed to respond on both occasions before Manu Ma'u and Bureta Faraimo went over either side of half-time to put Parramatta 20-10 up.
James Hasson scored for the Sea Eagles in the 46th minute to put them back within touching distance, but Jamie Lyon's conversion would be the end of the scoring.
With the win, the Eels jumped to 22 points " leaving them four behind the Dragons.
Meanwhile, half-back Kane Elgey guided the Gold Coast Titans to a 28-12 win over the Canberra Raiders.
Elgey scored a try and set up several others as the Titans crossed five times at Cbus Super Stadium to move clear of last place.
Kalifa Faifai Loa went over for a brace as Gold Coast jumped to 20 points " two clear of the Wests Tigers and Newcastle Knights and alongside the Raiders.