The GBP/USD has been bearish since topping near 1.71760. We then saw the formation of a hanging man formation with negative RSI, this causes a selloff and the sterling moved lower. We see support at 1.6700 then key support at 1.6745. A defend here could bring some buyers back. Failure opens the door for 1.67 and lower.
If the GBP reverses and closes above 1.68, then we can retest 1.6830/33. Above that can see a gap for 1.69 and higher.