Donovan Wilson scored a hat-trick as Wolverhampton Wanderers overturned a 2-0 deficit to beat Southampton 4-2 and climb to seventh in Division 2.
Saints seemed in control when Tyreke Johnson and Marcus Barnes put them ahead early in the first half.
But Kourtney Hause pulled one back just before the break and Wolves captain Wilson equalised immediately after the interval.
Wilson then put the visitors ahead on 57 minutes before completing his treble in stoppage time.
Wolves overtook Saints and Newcastle United to climb into seventh, while the result stretched Southampton's winless PL2 run to five matches.
See: Southampton report
Radhi Jaidi reacts to Saints defeat
🎥#SaintsFCU23s coach @RadhijaidiOff gives his post-match reaction after a disappointing showing against #Wolves in the #PL2: pic.twitter.com/g5MChykD3n
— Southampton FC (@SouthamptonFC) December 11, 2017
Next fixtures
Southampton: 18 Dec v Reading (A) PL2
Wolves: 18 Dec v Blackburn (H) PL2