If GBP/USD broke the support, movement can be bigger than expected. But I think the price will fallow the channel movement. Lets see.
GBP/USD pair is just broke the support line in H1 , and now tries to go upside of the support again. If this pair can not reach upside part of the support SHORT can be ideal. This is just my idea to discuss.
You can see reverse shoulder head shoulder formation in the graphic.