Refs off to a bad start; Poland off to a great one

Co-host Poland is having a ton of chances but can only put away one, leading 1-0 at the half over Greece,  Meanwhile, the refs are having a run of questionable calls, unfortuantely both on the same player putting Greece down a man (after already having to sub one of its starters due to injury).  One missed handball (saving Greece) and one non-call handball (ref looked to be correct, accidental), thelatter which sent Greece into a frenzy, earning yet another yellow card.  What a start!  Maybe Ukraine has a chance then?