* Ronaldo scores twice as Real win 3-0 in Bilbao * Weakened Barcelona beat Zaragoza 3-0 * Atletico thrash Granada 5-0 (Recasts after Real game, adds quotes) By Mark Elkington MADRID, April 13 (Reuters) – Cristiano Ronaldo proved too powerful for Athletic Bilbao as he scored with a fizzing free kick and a towering header in Real Madrid’s bruising 3-0 victory at San Mames in La Liga on Sunday. The Portugal forward took his league tally for the season to 31 goals, netting in his eighth successive game in all competitions, and set up Gonzalo Higuain for Real’s third. …
