Deerfield Capital Management, a Chicago firm well-known in collateralized debt obligation circles, is planning to issue another set of CDO liabilities backed by structured finance assets, according to sell-side officials. RBS Greenwich Capital is said to have the underwriting mandate for the deal. Deerfield, which is also in the market with Wolf Creek, a transaction backed by asset-backed bonds (BW, 10/6), has recently begun showing potential investors a structure for Knollwood ABS CDO I, a $303 million set of liabilities which would also be supported by receivables from structured finance assets. Officials not involved in the deal say it probably will be priced early next year. John Brinckerhoff, a spokesman for Deerfield, and Fred Matera, head of CDO origination at RBSGC, did not return calls.