Manchester City must avoid defeat at 10-time European champions Real Madrid to reach their first Champions League final after a cagey first leg at Etihad Stadium.
Chances were scarce for either side in a game Real superstar Cristiano Ronaldo missed because of a thigh injury.
Real pressed in the final quarter as Joe Hart denied Casemiro and Pepe.
City failed to register a shot on target until injury time, when Kevin de Bruyne’s free-kick was tipped over.
City will be happy not to have conceded an away goal against a free-scoring Madrid team – albeit missing their most potent weapon – but know they will need a monumental defensive effort to keep out the Spanish giants at the Santiago Bernabeu a week on Wednesday.
The winners will meet either Atletico Madrid or Bayern Munich in the final on 28 May in Milan.