QPR have signed Nigerian defender Ugo Ukah on a three-year contract following a successful trial.
Ukah, 21, played in Rangers' recent victory in the pre-season Copa de Ibiza tournament, and impressed boss Ian Holloway enough to earn a deal.
"Every day in training I give my all to improve, and Ian Holloway seems to like that," Ukah told the club's website.
"I enjoyed my time in Ibiza, and to play in the final against Coventry there was amazing."