The worlds rowing federation has rejected 22 of the 28 rowers that Russia entered into the Olympics.

In an announcement Tuesday, the federation said none of the 28 rowers have tested positive in the last five years.

But the federation acknowledged the Disappearing Positive Methodology that independent investigator Richard McLaren found was used to make some positive tests go away. 

It analyzed the rowers international tests and determined that all but six failed to meet the criteria set by the IOC.