By Nick Mulvenney SYDNEY, March 22 (Reuters) - Socceroo young guns James Holland and Tommy Oar are hoping to put to good use the lessons they have learned the hard way in European football when Australia meet Oman in a crunch World Cup qualifier next week. Playing thousands of kilometres from home has been the rule for top Australian footballers since former Middlesbrough and Liverpool midfielder Craig Johnston blazed the trail to England in the 1970s. ... More...