Adkins is delighted to bolster Southampton's goalkeeping options.
"He now gives us a third goalkeeper in the building, which is important because the potential for injuries and people getting sent off means we have to cover ourselves. He gives us great back-up and competition.
"Paulo is a very young goalkeeper and he did ever so well for us today, and everyone knows how much I rate Kelvin - what a great character he is and how important he's been in what we've done here at Southampton.
"Artur now comes in as a third goalkeeper with a vast amount of experience."