Rangers can advance to the Europa League knockout rounds with a win in their final fixture after holding Villarreal to a goalless draw.
Rangers retain control over their Europa League destiny after surviving with 10 men in the second half to earn a 0-0 draw with Villarreal at Ibrox.
Daniel Candeias' second dismissal in four appearances swung the initiative towards the LaLiga side on half-time, but Steven Gerrard's men were largely comfortable in securing a precious point.
The result, aided by Allan McGregor's vintage performance, means Rangers will reach the knockout rounds if they win away to second-placed Rapid Vienna on the final matchday on December 13.