Welcome back.....Cris ; RM 1:0 Zurich

Real Madrid forward Cristiano Ronaldo sent out a warning to Barcelona ahead of 'El Clasico' after making his return to action on Wednesday.

Ronaldo returned from injury with 20 minutes remaining as Real edged closer to a place in the Champions League last 16 with a 1-0 defeat of FC Zurich.

The world's most expensive player - having moved to the Bernabeu from Manchester United in an £80million deal last summer - had been missing for Madrid since September 30 with an ankle injury.

"It's good to be back, 55 days after my injury," Ronaldo told Sky Sports 2.

"It was very disappointing, but this is football.

"My motivation is high and I want to be back again and as strong as I was before."

Ronaldo was absent for Madrid's last 10 competitive fixtures having made a sensational start to his career in Spain.

The 24-year-old Portugal international scored nine times as Real won each of their opening seven matches, but since his absence, they have won only five of 10 - although four of those wins have come in the last five fixtures.

Ronaldo, however, is confident ahead of his first meeting with Barcelona as a Real player at the Nou Camp.

"We are top of the league and if we win we have a four-point gap," he added.

"It's going to be interesting. We are confident at the moment."

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