Ardennes Week closes the spring Classics and it was first blood to Julian Alaphilippe on Wednesday as he beat Alejandro Valverde to the top of the Mur de Huy to win Flèche Wallonne.  Richard Moore, Lionel Birnie and Daniel Friebe discuss this race as well as Sunday's Amstel Gold Race, won by Michael Valgren, and look ahead to Sunday's Liège-Bastogne-Liège. They also ask why some riders are able to excel in a particular race – two-time winner Enrico Gasparotto in the Amstel Gold Race, for example – only to virtually disappear for the rest of the season.  The Cycling Podcast is supported by Rapha and Science in Sport