Delve has also captained Melbourne Rebels and has been capped by Wales 11 times while playing for Bath and Gloucester between 2006 and 2010.
And he says he can't wait to join forces with fellow forward Jones once the season gets fully underway.
"Alun Wyn is held in huge esteem down here, by myself included," Delve told Wales Online.
"I've seen him grow from when he came over to Argentina and won his first cap. I've known him since he was a 20-year-old and I'm massively impressed.
"The guy loves the club, he loves the region and he puts his body on the line every week.
"That's something that attracted me to the region: the likes of Alun, Dan Biggar, Rhys Webb are internationals who come up with great performances for their country but can't wait to get back to their club and get involved."
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