Robert and Beverly Lewis, two of the biggest spenders in the Thoroughbred marketplace, will not be buying any yearlings this year at public auction."Mrs. Lewis and I are taking a rest," said Bob Lewis on Thursday. "In part, there are some personal reasons, but I am also in the process of selling my business and that is of paramount importance to me. In addition, we are trying to cut down on our numbers; we are feeding about 125 horses now. We'll be selling five yearlings this year and about 25 broodmares."Last year, the Lewises were the fourth-leading buyers of yearlings in North America, spending $7.13 million for 19 head."We'll be back (buying) at the 2-year-old sales next year," Bob Lewis said.The Lewises did not attend the Fasig-Tipton July or Saratoga yearling sales, but they plan be at Keeneland in September to watch their yearlings go through the ring.