Dollar's strong rebound from 89.14 yesterday and present breach of overnight 90.09 high signal recent decline from 93.78 has formed a temporary low there n upside bias is still seen for gain to 90.30/35, however, strong resistance at 90.50/60 should cap intra-day upmove and bring retreat later.  
Below 89.75/80 would suggest aforesaid recovery has possilbly ended but break of 89.25/30 is needed to confirm and bring subsequent re-test of said 89.14 low.