Manchester United unveiled plans on Tuesday to build the world's greatest soccer stadium. A proposed 100,000-seater arena, costing around 2 billion pounds ($2.6 billion), would be built next to United's current Old Trafford home and surpass Wembley Stadium as the biggest in the United Kingdom. Manchester United is the world's most favorite football club and, in my view, is the biggest and deserves a stadium fitting of its stature, part owner Jim Ratcliffe said. Work could begin as early as this year, with completion by the 2030-31 season, the club said. Ratcliffe, who is one of Britain's richest people, said the new venue could be a tourist attraction in the manner of the Eiffel Tower. We have 1 billion people around the world who follow Manchester United. They will all want to visit this stadium, he said. Designed by British architect Norman Foster, the first released images of the stadium include three giant tentpoles that would be seen from 40 kilometers (25 miles) away. They