In reply, a 120-run stand between Du Plessis, who made 61 off 34 balls, took them too far ahead for the Stars
Cloete struck 65 from 59 balls which laid the foundation for the Spartans’ 165/4 in their total of 20 overs.
The Proteas opener smashed three sixes and 12 fours in his 47-ball cameo as the hosts chased down a 145-victory target with 4.3 overs to spare.
Two consecutive sixes in the final over from Jozi Stars’ Nono Pongolo saw his side to a one wicket win over the Durban Heat
It was effectively the end of the play-off road for the Heat and they have three matches left to put in some decent performances.
The all-rounder took Dane Paterson to the cleaners with a six down the ground and a four to remain unbeaten on 22.
Hendricks shared in a 120-run record stand with Rassie van der Dussen (42) for the second wicket
The opener struck an unbeaten 104 out of a total of 173 for three for the visitors at St George’s Park.
Skipper Faf smashed a dominant 76 off 48 balls as Rocks chased down their 155-run target with five balls remaining.
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