Austrian - Nigerian wingback David Alaba reckons that the supporters of Bayern Munich have a big role to play in their clash against Real Madrid in the Champions League on Tuesday evening. <br /><br />The defending champions trail their Spanish opponents 1 - 0 going into the second leg semi-final tie at Fu&szlig;ball Arena M&uuml;nchen.<br /><br />&ldquo;In last year&rsquo;s Champions League against Barcelona we saw what our fans are capable of, and we need them again now.<br /><br />&ldquo;They will push us to attack; we&rsquo;re aware it won&rsquo;t be easy as Madrid have great players but we won&rsquo;t focus on our opponents.&nbsp; <br /><br />&ldquo;We concentrate on our strengths. We want to the final in Lisbon. It&rsquo;s our dream to go through,&rdquo; David Alaba told uefa.com.<br /><br />Alaba has made 11 appearances in the Champions League this season, netting in matches against CSKA Moscow and Viktoria Plzeň.<br /><br />Photo Credit : uefa.com<br />