The one incident that got the cricket world talking the most on the first day of the Boxing Day Test in Melbourne was Virat Kohli's altercation with Sam Konstas. The brief showdown took place after the 10th over of the Australian innings on the opening day of the fourth Test here when the players were crossing over. Kohli and Konstas bumped shoulders while moving across the pitch in the face off that was initiated by the travelling star. Kohli was eventually charged with breaching Level 1 of the ICC Code of Conduct by on-field umpires Joel Wilson and Michael Gough, third umpire Sharfuddoula Ibne Shahid and fourth umpire Shawn Craig.
Further the ICC says that Level 1 and Level 2 breach will happen "in the case of contact with Players, Player Support Personnel or any other person."
Level 3 and level 4 breach will happen "in the case of contact with Umpires and Match Referees."