Cristiano Ronaldo returns to Real Madrid training

Cristiano Ronaldo was pictured running outside on Sunday as Real Madrid trained before the Champions League clash with Manchester City.

Real Madrid has received a fitness boost ahead of the Champions League semifinal second leg against Manchester City after star forward Cristiano Ronaldo trained on Sunday.

Ronaldo was expected to recover from a hamstring injury to face City in last week's goalless first leg at Etihad Stadium but felt soreness during the final session before the game.

The three-time Ballon d'Or winner also sat out Saturday's 1-0 Liga win at Real Sociedad and, although coach Zinedine Zidane expressed tentative confidence Ronaldo can recover in time, doubts persisted over his physical condition.

But on Sunday, Madrid posted a tweet featuring pictures of Zidane's squad in training, including one of Ronaldo running.