With doubles specialist Raven Klaasen unavailable due to other commitments, Grainger has drafted in Dean O’Brien to partner Ruan Roelofse for the clash.
Singles players Tucker Vorster and Fritz Wolmarans, who spearheaded the team in their 3-2 first-round defeat to Turkey in March, have retained their places.
Wolmarans will play Irish No 1 James McGee in the first round of singles matches, while Vorster, the SA No 1, is up against Sam Barry.
“We’ve done all the preparation we needed to do and we’re feeling good,” Grainger said after naming his final four-man team at the draw on Thursday.
“We’ve got strong singles and doubles players, who are in good form, so we’re ready to go.”