Mandy Moore congratulates ex-boyfriend Andy Roddick on the 20th anniversary of his US Open win.

IMAGES INSTAGRAM

She shares a picture of Roddick from his GQ shoot on her Instagram Story.

Moore acknowledges their past relationship and its significance in her young adult life.

She expresses happiness for Roddick and his family's milestones.

Decker appreciates the article's thoughtful coverage of Roddick's life.

Moore comments on Decker's post, expressing her love for the article.

Decker acknowledges Moore's role in Roddick's life during their relationship.

Moore and Roddick dated from 2003-2004 after meeting on a film set.

IMAGES INSTAGRAM