Ordered to Face Judge In Person

... In Spa Case

Robert Kraft has been ordered to appear in court IN PERSON in his prostitution case -- and it's all going down in 3 weeks.

Kraft has been sending his legal team to Florida over the past few months to battle it out with prosecutors in his place ... in an effort to block officials from releasing the graphic footage from inside the spa.

Kraft's legal team have been grilling investigators over the past few days -- and Wednesday, they made their closing arguments as to why the video should never see the light of day.

As we previously reported, cops say they have graphic surveillance footage from inside the massage room at the Orchids of Asia Day Spa in Jupiter, Florida showing the…