Australia fast bowler Daniel Worrall will make his one-day international debut in Tuesday's one-off match against Ireland at Willowmore Park in Benoni, South Africa, captain Steve Smith said on Monday.
"He has worked very hard and he's improved a lot over the last couple of years. I think he's got a lot stronger and bowling with good pace and good shape," Smith told a news conference.
"This series will be a good challenge for him, with Ireland tomorrow and then South Africa in their conditions."
Worrall is one of three uncapped fast bowlers Australia have included in a 14-man squad for the warm-up game against the Irish and then a five-match ODI series against South Africa, starting on Friday. Joe Mennie and Chris Tremain are the other two.
"All the new quicks that are here have come a long way in the last couple of years, they've really improved and put their names up. It's a good opportunity to see how they do under pressure against a good South African batting line-up," added Smith.
