2002 Wimbledon final vs Lleyton Hewitt, did not show up, but he was probably tired from turning a straight sets victory over Xavier Mallise into an epic 5 set semi final victory.
2003 United States Open semi final, held a two sets to love lead and match point over Andy Roddick when a fan called out an erronious line call causing him to stop playing and cost him the point. Would have been an interesting match up with Yuan Carlos Fererro.
2006 Australian Open semi final, held a two sets to love lead over an overmatched Marcos Bagdhatis. Ran out of puff leading 4-2 in the final set. Would have been a good match for an out of sorts Roger Federer in the final.
2006 French Open, had to retire whilst leading Roger Federer comfortably in a match. Nadal was out of sorts in that final, and was Nalbandians pigeon at the time.
2009 French Open, had Nalbandian beaten Rafael Nadal as he should have at Indian Wells, he would have carried untold form and confidence into the French, and could have dispatched anyone.
Are you taking the piss here mate?
2003 USO - I would agree was a big chance for him. Really should have beaten Roddick that day.
2006 AO - Roger Federer was out of sorts? He was playing good tennis and had Nalbandian gone through Baggy i still think he would have come up short.
2006 FO - Nadal an Nalbandian didn't play agaist each other until late 2007. How is Nadal his pigeon?
2009 FO - Your kidding right?