The 34-year-old centre back played 66 minutes in two spells in the friendly against the third tier American side on Daniel’s Island, Charleston as goals from Josh Windass and Harry Forrester secured victory.
Manager Mark Warburton said: “We wanted to give him as much time as possible. We will have a chat with him later and we will see how we go from there.
“He has done well. He is a really experienced campaigner. He has played around the world and he has been a captain.
“It’s a tough one for us. We will chat as a coaching staff and go from there,
“It was a really useful exercise for us and I was really pleased. Whenever you come to the States you play against sides in the middle of their season so you know you will get a game.”
Windass converted in 58 minutes after good work from Michael O’Halloran on the right side
The Ibrox side scored a second goal in 76 minutes when Barrie McKay threaded a good pass to Harry Forrester in the inside right channel and he took a touch before driving a low right foot shot into the left corner.
With nine minutes remaining the local side countered with a spectacular strike when Atuallah Guerra got in behind Onyewu to smash a volley past Matt Gilks from a tight angle on the right side of the six-yard box.
RANGERS 1st HALF: Foderingham; Tavernier, Onyewu, Wilson (Hill 12) Wallace; Holt, Halliday, Windass; Waghorn, Miller, Walsh.
RANGERS 2nd half: Gilks; Tavernier (McCrorie 70), Hill (Onyewu 70), Wilson, Wallace (Thompson 61); Holt (Forrester 61). Halliday, Windass (Walsh 61); O’Halloran, Waghorn (Hardie 61), McKay.