IT was a truly memorable Derby day for Ger Lyons and Colin Keane as they joined forces for a treble which was completed by Siskin whose victory in the Group 2 GAIN Railway Stakes cemented his position as undoubtedly one of the star two-year-olds of the season so far.

The Khalid Abdullah-owned son of First Defence looked a top-drawer juvenile on his first two starts with the result that he was a 4/6 favourite to see off his four rivals and give Lyons a second win in this race.