Nine players are tied for the lead on -4 after day one of the 2011 Northern Trust Open, while the likes of three-time major champion Padraig Harrington, Luke Donald, Retief Goosen and Geoff Ogilvy all sit firmly in contentionbr br Welcome to Golfing World.br Created by IMG Media, the world's leading sports production company, we are a golf media platform delivering an unrivalled mix of golf content to millions of golfers daily.br Catch all the latest highlights, exclusive features and behind the scenes news from all the major golf tours worldwide to the very best instruction, destination reviews and player interviews.br With new videos being updated every day from across the globe, be sure to check back in regularly to view the latest news and video.br In addition, stay tuned for some exciting developments in the coming months....br br Follow Golfing World on Twitter for hot of the press updates.br Like us on Facebook for highlights, instruction videos, course reviews and more.