That's ridiculous, he only has to testify if he wants to.
Even then he can plead the 5th with specific questions.
Has nothing to do with his lawyers putting up a defense.
Looks like he is counting on a Trump pardon.
I mean, if the defense puts on its own case, and they don’t call Manifort as a part of it, then the jury will wonder (in spite of jury instructions to the contrary) why Manifort is not called as a witness? They will wonder “what is Manifort hiding?” Put on a case and call Manifort, and the prosecution will murder him.