The dual-purpose Middleham handler has had to be patient this summer with his useful stayer, who was a fair fifth to Vazirabad in a Group Two in May.
Given he needs a bit of dig in the ground, the heatwave has not been in his favour.
“Lord Yeats is in very good form at home. We are very happy with him, but, because of the quick ground conditions, we have not been able to get a run into him,” said O’Keeffe.
“We would like to run at York on Saturday, but he is not a definite runner because of the conditions. We will be monitoring the ground and the weather throughout the week.
“I have been thrilled with him at home and it’s just been frustrating that we haven’t had any ‘soft’ in the going description, which has stopped us running him since May.
“Lord Yeats has won at York before and I just felt that in last year’s Ebor he had plenty of weight and that made things difficult for him.
“We will see what the weather does this week, but I am very happy with him.”