If you call out sick tomorrow and your boss asks when you think you will be back..is the answer you give a promise or an estimation based on the information you have at the moment?
With Boguts ankle it's not an exact science. They have estimates based on previous experiences but everybody heals differently. It's not a question of if he could play anyway as we have seen he is able to play. But he can't play at the level he or the team wants and the extra work and stress on the ankle isn't strengthening it as they assumed or hoped it would so they shut it down.