Kaizer Chiefs assistant coach Doctor Khumalo knows what side of Sundowns Jeckyll and Hyde personality to expect on Sunday.
The Brazilains have been a pale shadow of their former selves this season showing promise one week but generally giving their fans very little to cheers about.
They currently languish in 10th position in the Castle Premiership, but Khumalo, a veteran of many encounters with AmaKhosis biter rivals, knows they will raise their game at the Odi Stadium in Mabopane.
Writing in his weekly column for Soccer-Laduma, Khumalo said: At the moment their team (Sundowns) seems to be blowing hot and cold.
I have no doubt that they will be hot against us, and once again we will have to produce a special performance to get a result.
The former midfielder maestro believes the Brazilians are still hurting from their Absa Cup defeat to the Phefeni Glamour Boys last month, something that will make them extra dangerous.
They will certainly see this as their opportunity for revenge, writes 16v.
We will have to be ready when they come at us.
Chiefs only injury worry ahead of the big game is new Zambian striker Collins Mbesuma, who has still not recovered from an ankle problem.