 Complete the following phrase:  The 2017 Yas Marina FIA Formula 2 round was a pair of motor races held on 25 and 26 November 2017 at the Yas Marina Circuit in Abu Dhabi, United Arab Emirates as part of the FIA Formula 2 Championship. It was the eleventh and final round of the 2017 FIA Formula 2 Championship and was run in support of the 