Glen Kamara's early goal helped Rangers beat St Johnstone 1-0 and keep the pressure on cinch Premiership leaders Celtic.
The Finland international's effort secured the Light Blues' first win in five away games, keeping them three points behind the Hoops in the Premiership.
Dogged Saints, locked in a relegation battle with Tayside rivals Dundee, refused to buckle after that disastrous start to ensure a nervous run-in for Rangers manager Giovanni Van Bronckhorst, who opted to keep all his substitutes on the bench.
