Eastbourne Borough denied Brighton a hat-trick of Sussex Senior Cup wins with an extra time victory against a young Albion reserve side at Priory Lane on Monday afternoon.
The only goal of the game came in the sixth minute of extra-time and was the result of a superb combination between the Crabb brothers.
A quick Danny Brown free kick put Matt Crabb away on the left and his cross saw Nathan Crabb leap high to head home by the far post.
Boro completely dominated the first half and should have had the game wrapped up by the inteval but they lacked a cutting edge with strikers Allan Tait and Andy Atkin both guilty of indecision in front of goal.
The best Boro effort was a Ben Austin header from a Brown free kick which was well saved by Albion goalkeeper Mitchell Walker.
Brighton came out in the second half with more urgency but rarely troubled Lee Hook in the Boro goal.
Boro lost Austin with a knee injury in the 63rd minute and he was replaced by Jay Lovett.
Six minutes later, Pat Harding replaced Tait and in the 81st minute Jack Jeffery came on for Atkin.
With Jeffery partnering Nathan Crabb up-front, there seemed much more chance of an Eastbourne goal and it finally came in classic fashion in the sixth minute of extra-time.
Hook made a fantastic save to deny Kane Louis in the dying stages but there was no doubt that Boro fully deserved to lift the Senior Cup for the second time in their history.