Mr Strauss-Kahn’s intends to “vigorously defend” himself against the charges, said his lawyers IMF chief Dominique Strauss-Kahn has consented to a medical examination over allegations of serious sexual assault.
Ms Strauss-Kahn, who was arrested on Saturday, denies attacking and attempting to rape a hotel maid.
He had been due to appear in court on Sunday but the hearing has been postponed until Monday to allow the forensic tests to be carried out.
The married former French finance minister is also considered a possible Socialist candidate for the presidency.
Mr Strauss-Kahn, 62, had been detained at JFK airport on Saturday night as he prepared to fly to Europe.
He was kept overnight in a special unit for sexual harassment in New York’s Harlem borough.
Lawyer William Taylor said his client had “willingly consented to a scientific and forensic examination”.
A second lawyer, Benjamin Brafman, said Mr Strauss-Kahn “intends to vigorously defend these charges and he denies any wrongdoing”.
Mr Strauss-Kahn’s wife has also said she believes he is innocent.
“I do not believe for one second the accusations brought against my husband,” she said in a statement sent to the AFP news agency on Sunday.
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