Just in time for the U.S. Open, superstar tennis sisters Venus and Serena Williams have sold their Midtown West apartment for $2.1 million, according to city records released today. The 1,800-square-foot loft at 28 West 38th Street is currently configured as a one-bedroom, but the wide open layout lends itself to a two- or three-bedroom setup. The sisters bought the unit in 2005 for $1,335,000, but were quoted a couple years later saying they had yet to furnish the space. And judging by the seemingly staged listing photos, they may never have gotten around to it. The buyers are Ted Wells, the criminal attorney recently hired by the NFL to investigate the “deflategate” issue, and his wife Nina Mitchell Wells, former Secretary of State of New Jersey.