Yeah looked like handball to me (for the last two) but only watched the quick highlights so could be wrong.
The first one - well posters on here were calling the Spurs keeper weak for getting fouled (and justifying him not getting a decision). The one on Martinez was less of a foul than that and it was called, it's one rule/interpretation that is ridiculously inconsistent and generally paid based on the reaction of the goalkeeper. Didn't seem to be much of a foul to me but only had a quick look.
