:00:11. > :00:13.Hi, I'm Ayshah with Friday's Newsround.
:00:14. > :00:17.Track and field athletes from Russia will be banned from competing
:00:18. > :00:25.Russia is one of the most successful countries
:00:26. > :00:27.in Olympic history, having won hundreds
:00:28. > :00:33.But they won't be adding to their medal tally this summer
:00:34. > :00:36.in Rio - the country's track and field team aren't allowed
:00:37. > :00:38.to compete in the Olympics because lots of them
:00:39. > :00:42.They have been found guilty of doping.
:00:43. > :00:45.That's when people use banned drugs to cheat and give themselves
:00:46. > :00:51.The Russian Olympic Committee and 68 athletes argued against a decision
:00:52. > :00:56.to ban them by the organisation that runs world athletics.
:00:57. > :01:05.Things could get worse for all of Russia's sports men and women.
:01:06. > :01:08.There are calls to ban all the country's teams
:01:09. > :01:11.from the Games, as experts look into whether or not other athletes
:01:12. > :01:17.The Canadian superstar Drake is heading towards his 15th week
:01:18. > :01:23.While Drake might be celebrating, others in the music industry say
:01:24. > :01:29.it's a sign that the charts are broken.
:01:30. > :01:34.But Drake has been hogging the limelight for three months.
:01:35. > :01:37.He's already spent 14 weeks at number one
:01:38. > :01:41.and is set to draw level with a 1994 song by Wet, Wet, Wet
:01:42. > :01:53.Although Drake's song has been on top for so long
:01:54. > :01:56.he hasn't actually sold that many records, it's streaming that
:01:57. > :02:05.I've come to Radio One to meet Chris Price,
:02:06. > :02:14.whose the man in charge of what music goes on the station.
:02:15. > :02:22.What has changed recently to make Drake stay longer than he would have
:02:23. > :02:27.done? Until recently the chart only measured the number of people buying
:02:28. > :02:36.a single, for example from a download store. Now the chart
:02:37. > :02:39.include streams. So it is like someone following you home and
:02:40. > :02:45.counting how many times you listen to a song in your bedroom. What does
:02:46. > :02:51.that mean for radio one? There might come a point where we are ahead of
:02:52. > :02:54.the charts and we might have to take Drake of the playlist. That is a
:02:55. > :03:00.serious question we have to ask ourselves at the moment. Have you
:03:01. > :03:05.ever seen anything like this? I don't think it has. If we took Drake
:03:06. > :03:08.of the playlist while he was number one bout with new thing.
:03:09. > :03:10.So will Drake be around for one more dance?
:03:11. > :03:19.Sometimes you can have too much of a good thing.
:03:20. > :03:22.Now to a show all about robots fighting each other.
:03:23. > :03:24.Robot Wars sees viewer's homemade robots up against the show's
:03:25. > :03:26.own house robots, like this one behind me.
:03:27. > :03:29.The new series starts on Sunday so I went to speak to the show's
:03:30. > :03:33.producer to find out what's in store.
:03:34. > :03:35.Andrew, we're at the press launch of Robot Wars.
:03:36. > :03:46.It felt like a secret that we have been holding for a long time.
:03:47. > :03:54.Tell us about what it was before and what you have now.
:03:55. > :03:58.Back in the day, you can imagine the size of a computer
:03:59. > :04:02.or a TV ten years ago, they were massive and old.
:04:03. > :04:04.Technology has changed so much, they are so much more
:04:05. > :04:14.dangerous and faster and the weapons are better.
:04:15. > :04:17.Who is the most fearsome house robot this time around?
:04:18. > :04:22.She is nippy and has a fly wheel at the back,
:04:23. > :04:27.she's probably got the most dangerous weapon in the arena.
:04:28. > :04:33.Dead Metal is terrifying and has a front spinning blades,
:04:34. > :04:36.which isn't actually that dangerous but makes a lot of sparks
:04:37. > :04:45.and she has pincers, she grabs you with her pincers
:04:46. > :04:47.and she pulls you forward and chops you in half.
:04:48. > :04:52.Then Shunt has an axe that fires from one side to the other
:04:53. > :04:57.That's it for now, I'll be back with more in half an hour.