nick kyrgios's racquet seemed to slip from his hand, and was given a warning for swearing.ndy murray was composed. breaking serve seven times to win in four sets. >> he let go of the racquet after the forehand. that only happens to him. literally went into the crowd. that's funny when you play against them, but you need to try to concentrate on your side as much as you can. >> i've been dealing with d well. it's been tough. i think i have moved on from it. i've put in a good performance, it's not the result i wanted. i thought i was focused and ready for today. >> second seed roger federer needed 77 minutes to win his first round match, the swiss losing five games in his victory. now, 35 - 34, the 5-time u.s. hope champion is looking to become the oldest winner in 45 years. >> durban in south africa hosts the 2022 commonwealth games. >> it will be the first time they have been held in africa. the city was the only candidate for the four yearly multi sport event after edmonton and canada pulled out over high costs >>> that is all the sport for now. >> busy day in south afric

. >>> tennis' new bad boy, 20- year-old australian nick kyrgios interesting haircut not making friends on the tour last month fined $25,000 for making an offensive comments about an opponent's girlfriend in the middle of a match. he has a temper, tatoos. check out this routine between sets with andy murray. nap time. by the way, murray put him to sleep for good beating him in four sets yesterday in the first round. >>> yes, got a mouth on him. >> mmm. >> talented but, you know, got a mouth on him. got to play the game the right way. >> so casual with the between the leg shots. >> that could be dangerous. >> oh, that, yeah. [ laughter >> we'll be right back. every auto insurance policy has a number. but not every insurance company understands the life behind it. those who have served our nation. have earned the very best service in return. usaa. we know what it means to serve. get an auto insurance quote and see why 92% of our members plan to stay for life. >>> i'm maurice dubois in the cbs 2 newsroom. tonight at 11:00 saving a life on a subway platform. new video tonight at 11 of an of

yep, that's what nick kyrgios decided to do, took a break, tilted his head back and dozed off. he's well known for his on-court antics but the nap obviously refreshed him because he won the next set before ultimately losing to andy murray. >> i was there. i watched him do it. >> was he like r.e.m., deep slope. >> no, more for performance. >> a little inner peace. >> meditating. >> i'll bet you he probably was. thank you. >>> here now a new warning about the dangers of powdered caffeine. one teaspoon is as powerful as 28 couples of coffee. that health alert in just 30 seconds. >>> when is your flu shot more than a flu shot? when it helps give a life-saving vaccine to a child in need in a developing country. thanks to customers like you, walgreens get a shot, give a shot program has helped provide 7 million vaccines. make your flu shot make a world of difference. walgreens, at the corner of happy & healthy. >> now to that fda crackdown on powdered caffeine. abc's david kerley in silver spring, maryland, with the details. good morning. >> reporter: two deaths already, the governme