Questione giuridica chiave
Whether the 10 April 2008 letter constituted a valid arbitration agreement conferring CAS jurisdiction.
Decisione estratta
The letter was only a settlement proposal and warning about the appeal path; it did not express a binding will to submit disputes to CAS if the settlement failed.
Motivazione estratta
Under the trust principle, the wording and context showed no offer to modify the prescribed appeal mechanism, only an attempt to secure an admitted-doping settlement.