The South African off-spinner Johan Botha can play in next month's Twenty20 Cricket World Cup after his action was cleared by the International Cricket Council but he is not allowed to bowl the 'doosra'.
He has been named in South Africa's squad as vice-captain for the event in England despite being reported last month for a suspect bowling action.
A statement from the ICC says an independent test found Botha's 'doosra' was illegal, even though his other deliveries were acceptable.
The analysis on Botha, who has played 45 ODIs, two tests and nine Twenty20s for his country, was performed by a member of the ICC's panel of human movement specialists in Perth a fortnight ago.
The 'doosra' is the ball an off-spinner turns away from right-handed batsmen.
Botha can apply for re-assessment of his 'doosra' action after he modifies it as per the regulations for the review of bowlers reported with suspect actions.
He was reported by the umpires after the fourth one-day international victory over Australia in Port Elizabeth.
Botha had also been reported for a suspect action in January 2006 and subsequently suspended from bowling.