Sydney McLaughlin talks about breaking her own world junior record again with a 53:82 in the 400m hurdles - in one of the fastest races in history - and what's next for her.<br /><br />Website: http://milesplit.com <br />Subscribe: http://bit.ly/2oJSZDS<br /><br />Follow MileSplit<br />Facebook: https://www.facebook.com/MileSplit <br />Twitter: https://twitter.com/milesplit <br />Instagram: https://www.instagram.com/milesplit/
