Marca.com is the official app of Spain's best-selling newspaper (sports and non-sports), which will let you access the latest sports news from your Android. That said, all the featured information tends to have a noticeable Madridista slant.
From the app's main window you can access all the website content such as news, game results, qualifying rankings, videos, fun facts, etc. So if Cristiano Ronaldo decides to change his hair, you'll probably hear it here first. That and of course his latest goals.
The app is divided into categories that let you stay informed about other sports like Formula 1, swimming or tennis, though most of the information is about football. For every 50 articles about football, you'll find one about another sport.
Marca.com is quite an interesting app for sports (especially football) fans to get all the info they might need at any given time. And, thanks to Radio Marca (which can be accessed from the app itself), you can listen to official broadcasts as well.