A 44 years old man clad only in a pair of plaid boxer shorts was found dead in a Chelsea park early Tuesday. The victim, whose name is not released yet, was found face down in grass in Chelsea Waterside Park near W 23rd St and 12th Ave about 5:30 Am, officials said. He had dried blood on his nose although he does not appear to be victim of an assault, police sources said. Despite his lack of clothes, his cellphone, wallet and cash were on him. An autopsy has been slated to determine how he died.