Exhibit 16.1 [PWC LETTERHEAD] July 23, 2009 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Citigroup Global Diversified Futures Fund L.P. (Commission File No. 000-30455) We have read the statements made by Citigroup Global Diversified Futures Fund L.P. (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 4.01 of Form 8-K, as part of the Form 8-K of Citigroup Global Diversified Futures Fund L.P. dated July 23, 2009. We agree with the statements concerning our Firm in such Form 8-K. Very truly yours, /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP