Instead of this player, you may be able to click on the following link, or else paste the link into an audio/video player:

http://as-hls-uk-live.akamaized.net/pool_47700285/live/uk/bbc_radio_five_live/bbc_radio_five_live_sports_extra.isml/bbc_radio_five_live_sports_extra-audio=96000.norewind.m3u8