LONDON—For this year's Frieze Week, London's Regent's Park is home to not one but two fairs — Frieze London and the new Frieze Masters — an expanded offering that so far has been met with enthusiastic sales and positive reviews. ARTINFO's Judd Tully is in the English capital for the fairs, and spoke with gallerists participating in Frieze — including New York's Andrea Rosen, Salon 94's Jeanne Greenberg Rohatyn, Hauser & Wirth's Marc Payot, and more — about the work they're showing in their booths. For all of ARTINFO's Frieze Week coverage, click here.