Paris represents last chance to earn a berth at Masters Cup

The field at next week's Sony Ericsson Championships in Doha, Qatar is now complete: Venus Williams and Vera Zvonareva sealed the final two spots at the women's season-ending showpiece.

Heading into this week's Paris Masters, which ends the men's regular season, three spots are still up for grabs at the men's season-ending Masters Cup in Shanghai. Only a minor miracle would prevent Andy Roddick from qualifying, with Juan Martin Del Potro, Gilles Simon and David Ferrer realistically chasing the other two slots in Shanghai.

Here's how the contenders stack up:

Ravi Ubha is a frequent contributor to ESPN.com.