Australia batsman Usman Khawaja is desperate to improve on "horrendous" fielding ahead of his team's clash against South Africa in the one-day international tri-series.

Khawaja made 98 but dropped two catches in his side's last outing, a four-wicket loss to West Indies at Warner Park on Monday.

The left-hander was unhappy with his display in the field and said there was little he could do but work harder on trying to improve.

"I don't think we fielded particularly well and I put my hand up obviously in that department," Khawaja told a news conference on Thursday.

"Sometimes you just have horrendous games and you just can't do anything about it and the ball follows you around.

"As I said a million times, you try to control things you can control. We train pretty hard during the next couple of days and then what's meant to be is meant to be.

"As long as we're going out there, showing energy in the field and as long as everyone is doing that that's all you can really do when you go out and field.

"It's obviously a big part of cricket, a big part of what we do well. If we're fielding well we usually win games so it's quite important."

Australia sit second to South Africa in the tri-series table, one point behind the leaders and one ahead of hosts West Indies.

Khawaja refused to look too much into Australia's latest loss and said making the final was still possible.

"It wasn't an ideal game, but at the end of the day, there are still two games and hopefully a final. At the end of the day you just want to get into the final, it doesn't matter how you get in there," he said.

"I think we're still playing some really good cricket. We showed glimpses of it, one game to the next we probably haven't been able to bring it together, which is probably one of the things that we really want to do

"We want to be consistent, build that consistency over a long period of time. Winning away from home, no matter what we do, is always a big box we want tick wherever we go."