Sadio Mané has clocked a top speed of 31.5 kmph in this season’s #UCL, but is that faster or slower than a dragonfly, polar bear or Trent Alexander-Arnold? Find out as the Liverpool forward takes on the 'Faster or Slower?' challenge. -- youtube.com/subscription_center?add_user=uefa Facebook: facebook.com/uefacom Twitter: twitter.com/UEFAcom G+: plus.google.com/+UEFAcom uefa.com