Turin, April 17 -- Cristiano Ronaldo shook his head as he walked off the field, while the Ajax players and staff celebrated with their fans long after the final whistle.

The youth-filled Ajax team knocked off another one of Europe's giants on Tuesday, beating Juventus 2-1 in Turin to reach the Champions League semifinals for the first time since 1997. It is the first time since 2010 that Ronaldo has failed to reach the last four, having won the competition the last three years in a row with Madrid.

"He's disappointed as we all are, but we can't be dragged down by this disappointment," Juventus coach Massimiliano Allegri said.

Juventus signed Ronaldo in the offseason in the hope of ending a 23-year wait for the Champions League but one ...