Observations on the European Racing Scene turns the spotlight on the best European races of the day, highlighting well-bred horses early in their careers, horses of note returning to action and young runners that achieved notable results in the sales ring. Saturday's Observations features a 'TDN Rising Star' in Red Letter. 3.55 Navan, Listed Darley Irish EBF Kooyonga Stakes, €55,000, 3yo/up, f/m, 8f 30yT RED LETTER (GB) (Frankel {GB}) takes in a welcome confidence boost here, having been asked a big question on her 3-year-old bow when seventh in the...