Finley, a New York-based golden retriever, started carrying six tennis balls in his mouth at once back in 2017 but didn't make his debut in the Guinness World Records book until this year Kelli ...

What are tennis balls made of? Modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurised air inside the rubber core makes the ball ...

Yet, the tweet still racked up 11,000-plus likes and fooled accounts like Deadspin. So no, Hample is not banned from MLB ...