Jersey boss Ben Harvey has hailed his side's defence after their victory over Rosslyn Park.
The island side held firm under tremendous pressure after Steve O'Brien was sin-binned towards the end of the first half as they won 20-18.
"You win leagues on defence it's often been said," Harvey told BBC Jersey.
"We've worked really hard on our defence coupled with a huge desire and pride to not let each other down and not let the island down."
The island side went top of National One after winning the top-of-the-table clash, the second time they played the league's leaders in as many weeks after beating Ealing the previous weekend.
And Harvey's thoughts on his side's defence were echoed by his assistant Ben Evans.
"We've got confidence in our own defence even when we've gone down to 14 men," said the former Wales international prop.
"We've done it a few times this season, it's not ideal, but we stick to tasks and the boys do their job."
A season-best National One crowd of 3,648 packed St Peter and Harvey felt the support that he had was tremendous.
"I think it was important throughout the game because at times I said to the boys 'make the crowd loud', if you get the crowd loud you'll lift the boys," Harvey added.