WIND RIVER (6) is twice placed on the flat. Reappears making stable and jumps debut. Market to guide as could prove a formidable force. Dual flat winner DAMBUSTER (1) impressed delivering initial hurdle outing last month when runner-up at Stratford. Danger. UNDER THE SUN (5) kicked off with a third tackling the trip at Plumpton. Finished fifth at Huntingdon next time. ZENATO (7) found the frame in one of three hurdle starts. Thereabouts for the in-form Fergal O'Brien yard.