Per ESPN, Galatasaray are still interested in signing the Newcastle full-back before their deadline.
The 34-year-old has fallen behind Tino Livramento in the pecking order but could still feature in the Carabao Cup semi-final against Arsenal.
Galatasaray are looking to strengthen their defense with both a right-back and a center-half before the window shuts.
Trippier is among their targets, though ESPN reports that a source close to negotiations has described the deal as "complicated."
With time running out, Newcastle must decide whether to sanction a late move or keep him for the remainder of the season.
