The Era of new Tennis stars earlier than expected?

Is it the time for the whole world to say goodbye to the tennis champions and top spotters from the previous several years? This question has been the main one in the tennis world after the quarterfinalists were known for the Qatar Open in Doha, and Jackpot Bet Online there were no signs of Novak Djokovic or Rafael Nadal in them. Together with Maria Sharapova, Serena Williams and Roger Federer they are the 5 icons of tennis nowadays. They have had some bad moments and some worst, many ups and few downs combined with injuries and Jackpot Bet Online bad games, but these bad moments never lasted longer than few games for the champions, and Jackpot Bet Online as the New Year and new season started they remain untouched in the first positions.