Teenage left back Luke Shaw is on standby to make a dream Premier League debut at Arsenal on Saturday.
The 17-year-old could be handed his first Saints league start at the Emirates with Danny Fox struggling to recover from a groin injury.
Scotland left back Fox has been resting the injury during the latest international break and has had an injection to try and rectify the problem in time for the weekend.
However, there are no guarantees he will be ready to face the Gunners and so Shaw is being prepared to step into the breach.
Shaw, who has long been tracked by a number of Premier League clubs and consistently linked with a move to Arsenal since he was 14, has only been brought into the first team squad this season.
He is very highly thought of at Saints but to throw him in for such a big game would be a major test for the youngster.
Shaw made a first start for Saints this season in the Capital One Cup win at Stevenage.
He only has one other senior appearance to his name, that a 13 minutes substitute appearance as Saints drew 1-1 with Millwall in the FA Cup in January.
However, a deal for Alexander Buttner collapsed, Martin Olsson wasn’t snared from Blackburn and nobody else was secured in that position.Saints do still have another experienced senior left back in the shape of Ryan Dickson .
He is part of the official squad list that Saints have submitted to the Premier League but could not be left out as all eligible players have to be registered unless you have more than the 25 man limit.
However, Dickson has not been handed a squad number for this season which shows just how far down the pecking order he has slipped.
The last time Dickson figured for Saints was back in September 2011.