Observations on the European Racing Scene turns the spotlight on the best European races of the day, highlighting well-pedigreed horses early in their careers, horses of note returning to action and young runners that achieved notable results in the sales ring. Friday's Observations features the 2021 Tattersalls October Yearling Sale Book 1 topper. 17.15 Kempton, Nov, £6,800, 2yo, f, 8f (AWT) Godolphin debutante RAINBOW SKY (GB) (Sea The Stars {Ire}), who is a full-sister to G1 Prix Marcel Boussac third Star Terms (GB), topped the sheets at last year's Tattersalls...