Today the pros chime in on running good versus playing good as well as their least favorite players to have on their left. In this installment we talked to Andy Bloch, Eric Seidel, Vanessa Rousso, John Phan, Bertrand Grospellier and the Devilfish himself, David Ulliott.

Keep an eye out for more of "The Pros On ... " as we track down the biggest names in poker to get their opinions on the issues that matter to you!