 Complete the following phrase:  The 2017 Spa-Francorchamps FIA Formula 2 round was a pair of motor races held on 26 and 27 August 2017 at the Circuit de Spa-Francorchamps in Stavelot, Belgium as part of the FIA Formula 2 Championship. It was the eighth round of the 2017 FIA Formula 2 Championship and was run in support of the 