Former captain Shaun Pollock wants a cracking performance from the inconsistent Proteas to make the Tri-Series final.

Ahead of tomorrow’s final round-robin game against hosts West Indies (7pm), the South African ODI side has struggled to put together back-to-back quality performances.

They have won two of their last five clashes with against Australia, who booked their place in Sunday’s final after beating the Windies by six wickets yesterday.

But Polly reckons that the inconsistency is down to a number of factors.

The former allrounder says: “This tournament for them should just be about making the final and then producing a decent performance on the day, that’s what a triangular is about.

“They look like they are heading in the right direction.”

Difficulties initially with adjusting to the pitches across three venues and the absence through injury of Faf du Plessis and Chris Morris were also challenges that had to be overcome, but he reckons a more settled side would achieve success.

He adds: “There are a few guys who are in that squad who are not settled, mainly in the bowling department.

“You are going to have days where they are up and perform well and then days where they are a bit average.”

One aspect pleasing the 303-match ODI veteran is the performances of the spinners Imran Tahir and Tabraiz Shamsi.

Of Shamsi, Polly says: “It’s great to have someone different.

“In those middle overs [Tahir] comes on he picks up wickets, he stops the scoring rate.

“He’s been a vital cog in the one-day set up and to have someone who is maybe capable of stepping into those shoes is vital.

“Shamsi is showing he has the potential to do that. He’s got those variations, he’s got a bit of mystery which is important in those middle overs.”