There's a change to the usual format this week as we focus on the crème de la crème of the two-year-olds, looking forward to some significant clashes in store at Royal Ascot next week. Timeform's highest-rated juvenile heading into Royal Ascot is the unbeaten G3 Marble Hill Stakes hero Great Barrier Reef (No Nay Never), who appears to have everything that you could wish to find in a potential two-year-old winner at this meeting. For a start, Great Barrier Reef is by No Nay Never, the most prolific sire of...