Here's the summation from the Manafort defense team's filing where the gov't redacted a very damning section of it that points right to violations of discovery:

This redaction was done to HIDE the fact the SC case for Manafort lying is based on hearsay BS, and the first allegation is just the use of his name by some other guy *in case* that guy ever managed to meet Trump.

The second allegation leveled against Manfort by the Mueller Special Counsel is especially sordid.



"Some guy we will not identify to your defense team told us you lied about ____ and no, we're not turning the actual statement over to your lawyers. Deal with it."