Rabada, 23, is regarded as one of the finest pacers of his generation and along with India's Jasprit Bumrah, is one of the two most sought after fast bowlers in the current crop. Playing for Delhi Capitals in the ongoing Indian Premier League, the tearaway Proteas quick is the leading wicket-taker with 17 scalps to his name.
"You look at KG (Rabada), he's been bowling exceptionally well. Kagiso is a wonderkid. Just hope he continues that kind of form. He's come on to the scene in international cricket and grabbed the opportunity with both hands.
"We've seen players come in, show signs of extreme excellence and then fade away, but KG is someone we can get used to," Steyn told reporters on the sidelines of RCB's practice session at the Eden Gardens.
"He (coach Gary Kirsten) asked me have I been playing, have I been bowling, and I said yes. I was actually prepping to play our local T20 tournament. It can sometimes be difficult coming halfway through the IPL and the World Cup coming up, but we got through it, and here I am," said Steyn who will turn 36 in June.
"I wasn't originally picked up for the IPL, but that's totally okay. Coaches have plans and structures, and if you're not in those plans you shouldn't take it personally. It's nothing personal, it's business. But to be honest with you, I just love playing cricket."