Yeni Ngbakoto played for QPR’s development side on Monday afternoon.
Rangers will listen to offers for Ngbakato during the January transfer window, with the Frenchman having been unable to establish himself in the first team since arrival from Metz last year.
He played the full 90 minutes of the game against Watford at Rangers’ Harlington ground, which ended in a 2-2 draw.
Aramide Oteh scored both the home team’s goals.
The former Tottenham youngster opened the scoring with a first-half penalty after Ngbakoto had been fouled in the area.
And after Watford hit back to lead at half-time, Oteh equalised 13 minutes into the second half when he was put through on goal by Reece Grego-Cox.
Goalkeeper Nathan Gartside then produced saves to keep out long-range strikes from Ngbakoto and Osman Kakay.
R’s winger Olamide Shodipo, who recently returned to action after injury, played 72 minutes.