Newcastle are three-time winners of the tournament in the Scottish Borders, lifting the trophy in 2005, 2006 and 2007.
Having taken a break from playing the abbreviated code the Red Bulls are now returning to the fray, having already announced their participation in the Melrose 7s on May 23.
Former GB 7s international Greenwood (pictured) skippers their assault on the Hawick competition, with a straight knock-out format seeing them up against Selkirk in the opening round at 2.20pm.
South African wing Stefan Coetzee and senior academy trio George Bolam, Junior Newton and Charlie Turnbull are also selected in a squad which includes a mixture of Under-18s and guest talent.
NEWCASTLE RED BULLS SQUAD FOR HAWICK 7S
George Bolam
Stefan Coetzee
Alex Dickie
Charlie Evans
Nathan Greenwood (captain)
Charlie Lawson
Junior Newton
Louie Platt
Charlie Turnbull
Alfie Warwick