Dollar's retreat from 109.84 in part due to cross buying in yen suggests the correction from last Friday's low at 107.90 has ended yesterday and further weakness towards pivotal support at 108.60 is seen, however, a break there is needed to signal recent decline has resumed and bring subsequent re-test of 107.90.  
Only above aforesaid resistance at 109.84 would bring another corrective rise to 110.20/30 but 110.50 should limit upside and yield retreat.