Freshfields Bruckhaus Deringer has expanded its antitrust litigation group with the addition of two partners, as regulatory scrutiny in the U.S. and internationally fuels client demand at Big Law firms.

Antitrust litigators Heather Lamberg and Justina Sessions will join the firm in Washington, D.C., and Silicon Valley respectively. Lamberg previously was a partner at Winston & Strawn, while Sessions was a partner at Wilson Sonsini Goodrich & Rosati.