James Tredwell drafted into Test squad

James Tredwell, the uncapped Kent offspinner, has been added to England's Test squad as cover for Graeme Swann, who has not fully recovered from the side injury that troubled him earlier in the tour, although the management are confident Swann will be able to take his place in the opening match at Centurion.

Swann missed the second Twenty20 international and was ruled out of the first two 50-over contests between the sides last month with the injury, but was replaced in the starting XI by Adil Rashid, the legspinner, on those occasions. However, Tredwell then joined the one-day squad for the remainder of the series.

Swann played in both the two-day matches against a South African Invitational XI at East London, collecting 6 for 55 in the first game and 1 for 65 in the second from a total of 27 overs.

"Graeme's injury is improving and we expect him to be available for the first Test starting on Wednesday," Andy Flower, the England coach, said. "But with a further three matches to come after Centurion we have decided that we need a 'like for like' replacement on hand for Graeme should this be required later in the tour."

When not with the senior squad, Tredwell has been based with the Performance Programme in Pretoria and he scored 70 in last week's match against a Titans President's XI. He was part of the England training session which took place at the University of Pretoria's high performance centre (HPC) on Monday.

England have been troubled by a number of injuries during the tour and doubts still linger over the fitness of pacemen James Anderson, who has a problem with his right knee, although Ryan Sidebottom is fully recovered from his side strain.

Anderson looked in decent shape during a centre-wicket practice session at the HPC and removed Jonathan Trott when Chris Jordon, the Surrey paceman who is part of the Performance Squad, held a good catch at third slip.