In the wake of the restrictions imposed through the Monaco tunnel earlier this year, the famous Eau Rouge sequence at Spa-Francorchamps has been singled out as another area of worry by some drivers. It is feared that there could be an increased risk of accidents if drivers are tempted to take the 180mph turn with DRS fully open in practice or qualifying — when DRS use is totally free.

FIA could ban DRS use at Eau Rouge during Belgian GP weekend amid safety concerns | AUTOSPORT.com.