Despite yesterday's fall to a marginal low at 88.80, dollar's subsequent rebound from there suggests a temporary low has possibly formed and a firm breach of resistance at 89.88 would signal correction of recent decline is under way, yield further gain to 90.30/40.  
On the downside, below yesterday's low at 88.80 would bring one more fall to 88.40/45 but loss of momentum should keep price above 88.10.