FACTS - In the past 20 years Celtic have reached the semi-final stage on 14 occasions, progressing to the final 9 times - Scored 11 goals in the competition so far with three goals a piece for Leigh Griffiths and Virgil Van Dijk - Have played Inverness 3 times in the league this season with one win, one loss and one draw ONE TO WATCH Leigh Griffiths The striker was Hibernian’s hero in the 2013 Scottish Cup semi-finals - scoring a double to beat Falkirk in extra-time – and has scored 11 goals in the competition during his career. Now at Celtic, Griffiths has been in impressive form with 15 goals to his name this season – including a hat-trick against Kilmarnock on Wednesday night. Expect the 24-year old to lead the attack within Deila’s favoured 4-2-3-1 formation.