Spain's Xabi Alonso joins Cristiano Ronaldo at the head of the class in the European Championship quarterfinals.

At Euro 2012, where 20 headed goals have been scored, Alonso and Portugal star Ronaldo showed perfect technique to send their teams into the semifinals.

Alonso's header to take the lead in a 2-0 victory over France on Saturday was almost identical to Ronaldo's goal that knocked out the Czech Republic on Thursday.

The Spain midfielder took up a good back-post position to meet a cross with an angled run into the goalmouth.

Then, with feet planted and a steady gaze on the ball, Alonso headed it powerfully down and bouncing back across the wrongfooted goalkeeper, Hugo Lloris.