At a large newspaper? Being a good reporter and writing human interest/feature stories in a writerly way.
When people send/attach clips, there are usually 3-4 of those kinds of stories in there. Some player's single mom, some athlete who had a brother or a friend die. Diseases, adversity, stuff like that. That reads cynical, but it's really pragmatic. They're looking for award winners. If you have some of those, point them out.
There is much more to being a good beat writer, mind you, but my experience is many beat writers at large newspapers are hired for their outside-the-box work, not their inside-the-box work. Editors don't hire for commercial purposes, or for other readers. Not usually. They hire for what impresses other journalists.
So I'd work on features.
Now, you wanna work at a Website like rivals or 247 or one of those off-brand MLB/NFL/NBA sites, you'd better know your shirt, or love recruiting.