O'Brien undecided on Yeats

RACING: Trainer Aidan O&rsquo;Brien admits he is still undecided whether to unleash Yeats on a fourth Gold Cup attempt at Royal Ascot.<br /><br />The eight-year-old was beaten into sixth on his return in the Vintage Crop Stakes at Navan last month, but O&rsquo;Brien insists there&rsquo;s more to come.<br /><br />He said: &ldquo;We&rsquo;ll just have to wait and see what will happen and when we try and crank him up, we&rsquo;ll have to see if he does respond.&rdquo;