If you would like to watch the game sadly the game is not being televised completely in the US although there are Japanese media that will be streaming the entire game. ESPN News has announced that they will be broadcasting the first 4 batters that Yu will face today. You can listen to the game through the Texas Rangers website, the MLB.tv, or on select ESPN radio stations.
A word of caution do NOT pin your hopes for Yu and the season on this one game. It has absolutely no merit in judging him. If you want to see a preview of what he can do then consider this game but only in the broader sense of the entire spring training experience, bullpen sessions included. The number of players that had good spring trainings and are never heard of again are huge, as well as Hall of Fame players who were terrible in spring training.
Enjoy the baseball, enjoy the Rangers, and support Yu.
Feel free to follow me @RangerFanSteve for game updates.