Roger Federer: What colour are tennis balls? - Daily Star
| Daily Star | Roger Federer: What colour are tennis balls? Daily Star In a video that's been viewed nearly 400,000 times on Twitter, Federer is asked the crunch question. “Hey Roger, are tennis balls green or yellow?” quizzes an enthusiastic fan. With absolute conviction the ATP No.1, replies: “They're yellow!” Away from ... Despite an abbreviated schedule, Roger Federer rules the roost Yellow or green: Roger Federer's comment on tennis balls' colour adds fuel to fire Are tennis balls yellow or green? Roger Federer weighs in on the debate |