VIDEO: Sunderland's Santiago Vergini scores unbelievable own goal

Well, this one should leave you speechless.

In one of the more inexplicable moments from this Premier League season, Sunderland defender Santiago Vergini handed Southampton a 1-0 lead on Saturday with an own goal that involved some world-class finishing.

After the ball fell to Vergini just outside Sunderland's box in the 12th minute, the Argentinian defender appeared to have a complete mind lapse and unleashed a curler into his own net that left 'keeper/teammate Vito Mannone with no chance. 

Perhaps the own goal shouldn't come as a complete surprise given Sunderland's poor history of scoring on themselves.