Despite yesterday's rise to a marginal high at 1.4002, euro's subsequent retreat suggests the erratic rise from this week's low at 1.3748 has possibly ended and a breach of previous support at 1.3872 would lend credence to this view, yield further weakness towards support area at 1.3806/22.  
On the upside, above 1.4002 would extend aforesaid upmove from 1.3748 to 1.4040/50 before prospect of a correction due to loss of momentum.