Humphries was deposed by Kardashian's lawyers on Monday (June 25) and he was apparently questioned on the nature of his and Sinanaj's relationship.
Sinanaj has reportedly alleged that she was told intimate details about Kardashian's sex tape, but Humphries denied those claims while on the stand.
Humphries testified that he only shared general information about Kardashian with Sinanaj and only when she asked, according to TMZ.
The NBA star also reportedly suggested that he was just friends with Sinanaj and only knew her for a few months.
He is said not to have offered any evidence of his claim that Kardashian married him as part of a publicity ploy. Lawyers for Humphries are thought to be saving such testimony until the actual trial begins.
Kardashian is expected to take to the witness stand in her Minnesota divorce proceedings at a later date.
Humphries has not offered any comment on this latest report.