Usability 
ESPN is the most popular general sports news site in the US on web and on mobile. It has extensive coverage of college and profession team sports, tennis, horse racing, motor sports, golf and more.
ESPN is one of the four TV networks that share the rights to broadcast NFL games. Their web site lets fans follow, in real time, any one of the 14 NFL games typically played on Sunday or the single Monday night game. The mobile site delivers almost all the same information. in a very effective and elegant way. BTW, I'm focusing on the ESPN's NFL coverage but ESPN's Web and mobile sites also cover all the major and many of the minor sports. There is live coverage of baseball and basketball but the NFL coverage is the most detailed.
When you visit the ESPN site, the first thing you see is a list of sports. After you choose NFL and then scores from the front page, you see a list of this weeks games with the scores. Scores of games that are finished are marked with an "F" and clicking on them will lead to a typical after game description of how the game unfolded. But selecting a game in progress brings up a screen showing the score, how much time is left, the down, the position of the ball, which team has procession and the outcome of the last play. These are the essential elements that a football fan needs to follow the game. Below the critical time-sensitive information is a refresh link. The page doesn't refresh itself presumably out of consideration for those of us on metered data plans. Scrolling "below the fold" will reveal secondary information such as game statistics and links to the pre-game story and a page detailing the scoring plays of the current game.