England beat Australia by 242 runs in Nottingham.
He also went on to say that his body is fine now and is excited to represent his country again.
The South African all-rounder will be replacing the recently-retired AB de Villiers
Steyn finished with a spell of 7-0-34-1 for Hampshire.
Temba Bavuma and Farhaan Behardien are the most experienced batsmen in the One Day side.
The first match will be played on July 29 at the Rangiri Dambulla International Stadium in Dambulla.
Dale Steyn has been named in the Test squad for South Africa's tour of Sri Lanka.
Towards the start of the current decade (2010-2019), the boards had innovative ideas to capitalize on the format, but it didn't quite work out as planned.
Bavuma has normally played at number 6 for his team ever since he has made his debut in the whites.
The run-fest unlocked some rare feats and a few records Women’s ODI records were broken.