Ashley Nadesan, who repaced the injured Remi Oteh early on, opening the scoring before Jordan Tunnicliffe double the lead with a towering header.
Dom Bernard pulled one back late on for Forest Green but it was enough as the Reds claimed all three points.
Photographer Cory Pickford was there to catch the action, the celebrations and the crowd. See a selection of his pictures below.
You can see a full recap of the game here. And you can see John Yems’ reaction to the victory here. For the latest breaking news where you live in Sussex, follow us on Twitter Sussex_World">@Sussex_World and like us on Facebook @SussexWorldUK
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Ashley Nadesan celebrates his goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174117004
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Reds fans. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174322004
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Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174203004
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Reds fans watch on. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174418004
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Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174438004
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Crawley Town players before the game. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174222004
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Reds line up before kick off. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174242004
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Ashley Nadesan celebrates his goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174030004
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Ashley Nadesan celebrates his goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174047004
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Ashley Nadesan celebrates his goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174102004
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Ashley Nadesan celebrates his goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174130004
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Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174458004
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Reds players celebrate Ashley Ndaesan's opener. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174514004
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Jordan Tunnicliffe climbs highest to head home. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174535004
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The ball in the net after Jordan Tunnicliffe's header. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174557004
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Players celebrate Tunnicliffe's goal. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174613004
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Reds fans celebrate. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174632004
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Isaac Hutchinson. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174651004
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John Yems gives instructions. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174711004
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Reds fans. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174322004
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Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174203004
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Reds fans watch on. Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174418004
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Crawley Town v Forest Green Rovers. Picture by Cory Pickford SUS-220226-174438004