he accused the fourth official coltescu of racism.ials were replaced. as well as the suspension, coltescu has been ordered to attend an educational programme. novak djokovic has now beaten roger federer�*s record for the most weeks as world number one. this is the 311th week the serb has been on top of the rankings, winning his 18th grand slam title and his ninth australian open crown in melbourne last month. his great rivals federer and rafael nadal both have 20 slams, but the 33—year—old knows the youngsters are coming. the new generation of top men's tennis players are all very tall, very powerful, they have big serves and everything happens very quickly on the court, so i think rafa, roger, myself, we had to adjust to that, but i feel like we have been able to do that very well and the rivalries i have had with federer and nadal over the years have made me also stronger and better player. of course, they also keep motivating me even more to keep going and of course each one of us has their own unique journey and it's wonderful to