SAM Surridge and Jordon Ibe struck late as Cherries under-21s battled back to beat Southampton 3-2 at Vitality Stadium.
Cherries looked set for defeat against their south coast neighbours, despite a Jordan Zemura effort, only for Ibe and Surridge to net inside the final five minutes to turn the contest on its head.
The victory sees Shaun Cooper's side secure their passage into the Premier League Cup knockout stages.
More than 3,500 fans turned out to see the youngsters in action and were treated to a topsy-turvy encounter.
Saints made the stronger start with Kornelius Hansen dragging an early effort wide before Dan N'Lundulu also blazed over.
Cherries burst into life with Surridge twice trying his luck with Jaidon Anthony also going close.
But it was Southampton who took a lead into half-time as Will Ferry latched onto a loose Gavin Kilkenny pass and teed up Hansen to tuck past Mark Travers.
Surridge looked for a quick reply after the break, but was thwarted by a Jake Vokins block.
And Cherries did level on the hour mark as full-back Zemura broke forwards to connect with Kyle Taylor's through ball and slam home.
But back came Saints, retaking the lead as Pascal Kpohomouh forced an effort beyond Travers, despite his best efforts on the line.
However, there was time for Cherries to stage a late comeback. First, Ibe collected from Surridge and lashed into the bottom corner.
The roles then reversed with Ibe finding Surridge, who made room on the edge of the box to slam in a stoppage-time winner.
Cherries: Travers, Genesini (Glover, h-t), Sherring, Cordner, Ibsen Rossi, Zemura, Kilkenny, Taylor, Ibe (Oliver, 90), Anthony (Nippard, 75), Surridge.
Unused subs: Bertrand, Terrell (g/k).
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