When he first signed for Sunderland in January, fans weren't too impressed with the defender's unorthodox style.
Vergini made his league debut on February 8, replacing Fabio Borini after defender Wes Brown had been dismissed in their home game against Hull City.
His first start came two weeks later away to Arsenal. where the defender made numerous errors in a 4-1 defeat.
After a disappointing 5-1 loss to Spurs, Vergini turned his Sunderland career around by putting in some sterling performances to help them pull off 'the great escape' and avoid relegation.
Manager Gus Poyet took the bold decision to play the 26-year-old Argentine at right-back for the remainder of the season. In this position, Vergini would prove just how good a footballer he is.
Change of role
The defender, who is currently on loan from Estudiantes, is comfortable on the ball and can attack as well as defend.
Although he may not have the most natural running style, the 6ft 3in defender sure does posses the flair you'd associate with South American football and is not afraid to take on his man.
Only Southampton have conceded less goals than Sunderland in this Barclays Premier League season so far, which is a testament to Vergini's performances.
After a string of impressive displays, Vergini recently received a fully deserved call-up to the Argentina squad. Today, he featured for the full 90 minutes of the 7-0 drubbing of Hong Kong.
If his current form continues, Sunderland fans will be hoping the defender will sign a permanent contract after his second spell on loan at the club.