AS Roma's Belgian player Radja Nainggolan admits the opening game for his team will be a very tough test indeed<br /><br />Barça 2.0<br />Subscribe to our official http://www.dailymotion.com/fcbarcelona<br />Facebook: http://www.facebook.com/fcbarcelona<br />Twitter: http://twitter.com/FCBarcelona<br />Google+: http://plus.google.com/+FCBarcelona<br />Instagram: http://www.instagram.com/FCBarcelona
