Discount retailer Dots LLC is preparing for a possible bankruptcy-protection filing by Sunday, as it struggles to stay afloat amid competition from online rivals, the Wall Street Journal reported on Friday, citing people familiar with the matter. _0"> Limited-time or "flash" sales on popular websites such as Rue La La and Gilt have eaten into Dots's revenue, which has declined in recent periods, the Journal report said, citing the people. The retailer, which caters to women aged between 25 and 35 years old and has more than 400 stores across 28 states, has enlisted restructuring advisers at PricewaterhouseCoopers PWC.UL and law firm Lowenstein Sandler LLP, according to the WSJ. Glenwillow, Ohio-based Dots is also in talks with asset management firm Salus Capital Partners for debtor-in-possession financing, sources told the business daily. According to the report, Salus provided Dots with about $50 million in financing about six months ago. Dots's bankrup