Yesterday's breach of previous 84.72 support (now resistance) to a fresh 15-year low at 83.58 suggests downside bias remains for further weakness to 83.30/40, however, near term 'loss of momentum' should keep price above 82.85/90 and bring a much-needed minor correction.  
On the upside, only above 84.89 may risk stronger retracement to 85.34 and 85.92.