As long as price hold below 1.3980 we could expect price to continue going down.
Price holding below the descending trendline for now so will try to forecast the movement with elliott wave theory.
We're now on the process of wave-3 and this wave will consist of 5 subwaves.
This wave-3 could go down towards 1.3660-1.3600. But in order to reach that, price need to closed below 1.3800. It is more convincing if it was daily candle closing below 1.3800.
Sell GBPUSD 1.3920
Stop loss 1.3980 (60 pips)
Take profit 1.3660 (260 pips)
RR ratio 1 : 4.3
Use only 1-2% risk
Good luck