The Tomoki Iwata situation is one that has mystified the Celtic supporters over the course of this season. The injury to Reo Hatate against Atletico Madrid left Brendan Rodgers with a gaping hole in the centre of his midfield. The Celtic manager has tried and tested the likes of David Turnbull, Paulo Bernardo and Odin Thiago Holm but none have been impressed enough to keep their place in the team. Well, last night it was the turn of Tomoki Iwata and after weeks of waiting on the sidelines the Japanese midfielder got his opportunity. But why did it take Rodgers so long to throw the 26-year-old …