Exhibit31.1

CERTIFICATION

I, David J. Vogel, certifythat:

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| 1.  | I have reviewed thisquarterly report on Form 10-Q of Salomon Smith Barney GlobalDiversified Futures Fund L.P. (the"registrant"); |

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| 2.  | Based on my knowledge, this reportdoes not contain any untrue statement of a material fact or omit tostate a material fact necessary to make the statements made, in lightof the circumstances under which such statements were made, notmisleading with respect to the period covered by this report; |

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| 3.  | Based on my knowledge, the financialstatements, and other financial information included in this report,fairly present in all material respects the financial condition,results of operations and cash flows of the registrant as of, and for,the periods presented in this report; |

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| 4.  | The registrant's othercertifying officer and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in ExchangeAct Rules 13a-15(e) and 15d-15(e)) for the registrant and have: |

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|   | a) | designed suchdisclosure controls and procedures, or caused such disclosure controlsand procedures to be designed under our supervision, to ensure thatmaterial information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within thoseentities, particularly during the period in which this report is beingprepared; |

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|   | b) | evaluated theeffectiveness of the registrant's disclosure controls andprocedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures, as of the endof the period covered by this report based on such evaluation; and |

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|   | c) | disclosed inthis report any change in the registrant's internal control overfinancial reporting that occurred during the registrant's mostrecent fiscal quarter that has materially affected, or is reasonablylikely to materially affect, the registrant's internal controlover financial reporting; and |

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| 5.  | Theregistrant's other certifying officer and I have disclosed, basedon our most recent evaluation of internal control over financialreporting, to the registrant's auditors and the audit committeeof the registrant's board of directors (or persons performing theequivalent functions): |

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|   | a) | all significantdeficiencies and material weaknesses in the design or operation ofinternal control over financial reporting which are reasonably likelyto adversely affect the registrant's ability to record, process,summarize and report financial information; and |

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|   | b) | any fraud,whether or not material, that involves management or other employeeswho have a significant role in the registrant's internal controlover financial reporting. |

Date: August 15, 2005

|  | /s/ David J.Vogel                         |
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|  |                         DavidJ. Vogel          Citigroup Managed Futures LLC                 President andDirector |
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