Dollar's rebound from 98.45 suggests the retreat from 100.21 has ended there and consolidation with upside bias is seen, however, a breach of said resistance is needed to signal breakout of the range of 97.67-100.45 has taken place and bring resumption of upmove from last week's low at 95.77 to 100.70/80 later.  
On the downside, below 99.00 would prolong choppy trading and yield weakness towards previous support at 98.45.