Nick Bollettieri & GR8 Group Aim to Create Smiles for Seriously Ill Children Through Their Exclusive Luxury US Open Tennis Experience MIAMI, Fla., July 27, 2015 (GLOBE NEWSWIRE) -- via PRWEB - Before Wimbledon was over, and Djokovic and Serena danced "Night Fever," Nick Bollettieri and GR8 Group were planning their US Open Signature...