Bay seniors excited about the opening of baseball season this week might want to know about another sport whose popularity is even more impressive. It is estimated than in 2013 over 71 million people were watching competitive video games. You can see what the excitement is all about when Red Bull stages its Battle Grounds tournament for 5 weeks from April 6 to May 10 at the Warfield Theater. The players are not just a bunch of adrenalinized adolescents but professional teams from around the world. You can also watch the action online.