Much like the first-half Middlesex had the first clear cut opportunity of the second period, Dones cross was met by the head of Rene Barnes but his effort clipped the post on its way wide.
From then on Sussex dominated proceedings but failed to create any notable openings until the game opened up in the final knockings.
Brady stung the palms of Pawlak with a rasping drive as the clock ticked down, and then in added time he met Young’s low cross into the box and coolly sweep the ball into the net, doubling the lead and sealing the points for Sussex.
After the match Sussex assistant manager Ian Brown said: “We had a change in shape today and that worked really well for us, plus a few new players involved who played very well which I’m pleased about.
“It was a good solid team performance from us, and in the second-half I was really impressed because we stayed compact against a good side and limited them to very few chances.
“Everything we wanted to do worked out today, which was brilliant, and all the boys did exactly what I wanted from them, so overall I’m really pleased!”
(A selection of photographs can be found on Facebook - courtesy of Kyle Hemsley Photography)
Goals: 2-0; Shots: 8-6; Shots-on-target: 5-3; Corners: 2-2; Fouls: 13-5; Offside: 3-3; Yellow cards: 0-0; Red cards 0-0.
Sussex: Lester, Jelley, Harper, Langford, Cocoracchio, Mthunzi, Collins, Young, Hutchinson, Chalaye, Brady.
Subs: Santos, Pool, Buchanon.
Middlesex: Pawlak, Essadoah, Heath, Mason, Lenihan, Bakry, Amoah, Mills, Francis, Novak, Dones.
Subs: Deacon, Thomas-Gaye, Barnes, Swaby.
Match report by Darren Ford