Van Dijk was sent off in the Scottish Cup quarter-final at Dundee United last weekend but the SFA have moved to rescind the red card, meaning he is now free to face United again during this weekend's final.
And Celtic head coach Deila says he is 'very happy' that Van Dijk can play.
The Dutchman is one of the Bhoys' key stars in defence and Deila would no doubt have to do significant preparation to work on a game as big as a cup final without him.
The Norwegian also emphasised the need for consistency with the officiating in Scotland.
RD: “I’m very happy and I’m very happy for Virgil that he can play." (MD)— Celtic Football Club (@celticfc) March 12, 2015
RD: “The most important thing for me is consistency and I think the refs do a good job."— Celtic Football Club (@celticfc) March 12, 2015
RD: "Sometimes they do a bad one but if you’re going to go back and look then you have to be consistent."— Celtic Football Club (@celticfc) March 12, 2015
Celtic drew 1-1 with Dundee United this weekend and lost to St Johnstone in their Scottish Premiership clash prior to that quarter-final.
The Hoops, then, need to return to winning ways this weekend - even if after extra-time - if they are to begin the path to a historic treble in Deila's first season at Celtic Park.