South Africa went top of the one-day rankings after completing a series whitewash of Bangladesh.
AB de Villiers' half century guided South Africa to a seven-wicket victory over Bangladesh in the second one-day international on Wednesday.
Captain Graeme Smith hit a brilliant unbeaten century to steer South Africa to a nine-wicket victory over Bangladesh in the first one-dayer in Chittagong.
Robin Peterson returned figures of five for 33 as South Africa bowled out Bangladesh for just 119 to win the second Test by an innings and 205 runs and wrap up a two-nil series victory.
Dale Steyn put South Africa in sight of victory in the second Test against Bangladesh as he claimed three second innings wickets to leave the hosts reeling on 54-5.
Graeme Smith and Neil McKenzie's record-breaking opening partnership ensured South Africa were in total control of the second Test.
South Africa openers Graeme Smith and Neil McKenzie stand on the brink of history after batting through the opening day of the second Test against Bangladesh.
South Africa have won the first Test against Bangladesh by five wickets after picking up the 27 runs they required to win on the fourth day.
With six wickets in hand, South Africa need a mere 27 runs to win the first Test against Bangladesh in Dhaka come Monday.
An unbeaten half century from Junaid Siddique helped Bangladesh strengthen their position on day two of the second Test against South Africa.
Morne Morkel claimed four wickets as South Africa continued to dominate on the opening day of the first Test against Bangladesh.