While still No 1, South Africa have dropped 16 ranking points after losing the Test series against India 3-0.
The series result has helped Virat Kohli’s side gain 10 points, which has lifted them from 100 points to 110 points and ahead of Australia and Pakistan, who have slipped one place each to third and fourth, respectively.
Although the Proteas are still No 1 for now, their lead at the top has been slashed from 16 points to just four points.
India have no more Test matches before the annual 1 April cut-off date, but third-ranked Australia will host eighth-ranked West Indies in a three-Test series from 10 December.
To finish as the number-one ranked Test side at the annual cut-off date, South Africa will have to, at least, draw the series with England. Failure to do so will result in them falling from the top pedestal and handing the top spot position to Australia, if they beat the West Indies 3-0.
ICC Test rankings for teams