Manchester United manager Louis van Gaal admits it is "difficult to lay a finger" on £27m left-back Luke Shaw's ongoing fitness problems. <br /> <br />England international Shaw will miss the start of the Premier League season, and Van Gaal cites his World Cup involvement and jet lag sustained on United's pre-season tour as two possible reasons. <br /> <br />Van Gaal says he is "not nervous" about an apparent lack of recognised cover at left-back due to the emergence of Reece James and the re-invention of Ashley Young as a wing-back. <br /> <br />Please like the video and share wherever you can! <br /> <br />To make sure you don't miss any of my videos <br />on this and my other channels please : <br /> <br />Follow this channel : <br /> <br />Follow me on Twitter : http://www.twitter.com/Beanyman62 <br /> <br />Check out my website : http://www.beanyman62.com <br />With every video I upload here : http://bit.ly/SiteVideos <br /> <br />Like me on Facebook : https://www.facebook.com/beanyman62 <br /> <br />Follow me on Google+ : http://google.com/+BeanymanSports <br /> <br />Thanks
