Scotland's Finn Russell has recovered from his injury in time for this weekend's Round Four opening match with Wales for the Guinness Six Nations.
Scotland left Houston became the first Tier One nation to lose to the USA.
Former Scotland skipper Mike Blair will take up a coaching role with Glasgow after announcing his retirement.
Scotland have made five changes from the team which finished off their RBS 6 Nations campaign for the match against Japan on Saturday.
Glasgow Warriors have signed wingers Rory Hughes and Junior Bulumakau on new one-year deals to keep them at Scotstoun until at least May 2017.
Scotland head coach Vern Cotter has stuck with his promise to give every member of his touring squad some game time by making six changes for the second Test against Japan.
Scotland centre Duncan Taylor is heading home from the tour of Japan due to the hamstring injury he suffered in Saturday's first Test.
A last-gasp try from Dougie Fife earned Scotland their first HSBC World Rugby Sevens Series title as they defeated South Africa 27-26 at Twickenham.
Glasgow have signed New Zealand-born fly-half Hagen Schulte following a successful trial spell.
Scotland prop Gordon Reid is relishing another trip to Rugby Park after Kilmarnock was named as the venue for the November Test against Georgia.