Graeme McDowell is beginning the defence of his Scottish Open title at Loch Lomond this morning. The Portrush golfer finished two shots ahead of South Africa's James Kingston to claim victory in the event last year. Meanwhile, Padraig Harrington continues his preparations for next week's Open at the Irish PGA Championship in Wicklow. The Dubliner is one shot off the lead heading into day two of the tournament at the European Club. Dundalk's Leslie Walker tops the leaderboard on four under par.