Southern Kings wing, Michael Killian, will miss out on the debut match against the Western Force after breaking his arm during a practice session on Friday.
Director of Rugby, Alan Solomons, says the break was picked up following x-rays taken over the weekend.
"Michael has a fracture to the mid third of his radius and will be out for between four to six weeks, which means he will miss out on the opening game against Western Force and most likely the Sharks game as well." he said.
Killian was born in Uitenhage and attended Muir College, where he played in the U-19 and U-20 competitions for Eastern Province.
He started his professional career at Eastern Province in 2004, representing the Mighty Elephants in the Vodacom Shield and ABSA Currie Cup First Division.
In 2008, he moved to the Golden Lions, where he also became a regular for the Lions Super Rugby franchise.
On 5 June 2012, he announced that he would rejoin the Eastern Province Kings.