There has been a lot of accumulation...Djokovic sues ATP counterpart
The players' union, co-founded by Novak Djokovic (Serbia, photo), has taken legal action against the tennis tour. The Professional Tennis Professionals Association (PTPA) announced on the 19th that it has filed a lawsuit in federal district court in New York, USA, citing "anti-competitive practices and a clear disregard for player welfare." T