Even as the U.S. Open opened this week with more than ... smaller-court version of tennis called ''red ball tennis." Backers say it's the ideal way for people of all ages to get into tennis ...

The best tennis ball for most players is the Wilson US Open tennis ball. However, if you're a beginner, on a hard court or want tennis balls that are easy to find, we have those options for you below.

But that didn't matter, and the most bizarre US Open ever now includes one of the most bizarre happenings in tennis history ... was defaulted after a ball he struck towards the backboard hit ...