article_snippet: Goal: Denayer 17, Griffiths 57, Commons 79, Van Dijk 90 .
article_snippet: Jason Denayer’s 17th-minute headed goal was the platform for Leigh Griffiths to add a second on 57 minutes.
article_snippet: Kris Commons thrashed the third high into the net 12 minutes from time before Virgil van Dijk tapped in from close range in the final moments.
article_snippet: Jason Denayer (centre) rises above the Dundee United defence to score the opener for the hosts .
article_snippet: Jason Denayer (centre) celebrates after putting Celtic 1-0 up in the Scottish Cup quarter-final .
article_snippet: A Commons corner picked out van Dijk, the Dutchman’s firm header surging over the bar.
article_snippet: Van Dijk scores with a tap-in late on to cap a successful night for the home side .
highlights_snippet: Jason Denayer, Leigh Griffiths, Kris Commons and Virgil van Dijk all scored for the hosts at Celtic Park .
  