JOHANNESBURG, (Reuters) – Left-arm swing bowler Wayne  Parnell and leg-spinner Imran Tahir have been added to South  Africa’s squad for the fourth test against England, Cricket  South Africa (CSA) announced yesterday. Parnell, 20, has played nine one-day internationals for his  country but has yet to play a test while Tahir, born in Pakistan  but now qualified for South Africa through residency, has yet to  represent his adopted country in international cricket.

The final test of the series starts at the Wanderers in  Johannesburg on Jan. 14. The hosts trail England one-nil.

“This is a must win test for us and we have covered all our  bases as far as the composition of our attack is concerned,”  South Africa selection convener Mike Procter said in a  statement.

Tahir, 30, is a well-travelled cricketer who has represented  Pakistan A and Middlesex, Yorkshire and Hampshire in the English  county championship. He is currently playing for Easterns in  South African domestic cricket.

Fast bowler Friedel de Wet has been retained in the 15-man  squad despite needing a scan on his back after he suffered  spasms during the third test in Capetown.

South Africa – Graeme Smith (captain), Hashim Amla, Mark  Boucher, AB de Villiers, Friedel de Wet, JP Duminy, Paul Harris,  Jacques Kallis, Ryan McLaren, Morne Morkel, Wayne Parnell,  Alviro Petersen, Ashwell Prince, Dale Steyn, Imran Tahir.