Could Curiosity Participate in Mars Sample Return?

Hacking Curiosity: Adding an aftermarket sample collection capability to the Mars Science Lab, Doug Mohney

“NASA’s withdrawal from a joint ExoMars 2016/2018 mission has left the planetary science community grieving the at loss of the first step in a sample return mission: collection of samples. However, there’s a $2.5 billion rover with a mechanical arm and plenty of power scheduled to land on Mars in August. Can the Mars Science Lab (MSL) Curiosity be fitted with a couple of “aftermarket” sample collection racks once it completes its primary mission of one Martian year? The author believes there is the potential to do so.”