I genuinely didn't think Kane would do this to Spurs. I am quite surprised about it, and to be honest I don't like it when players don't turn up for training etc. It's not professional and reflects badly on Kane.
However, Spurs have played this incredibly badly. He wanted to leave and I think he had a gentlemens agreement he could do. Spurs have no chance of any form of trophy and Kane wants trophies. If they are not careful they could end up with no money and a very unhappy player on their books. His value has dropped - not that anyone would pay £150m, but they are now likely to get offers of under £100m which was a fair amount in the market.
I'd be tempted to let Kane stay at Spurs - they won't play him against us. Let him stay there spoiling the team spirit before an offer just before the window closes.