United may be embroiled in a fascinating climax to the current campaign, but Sir Alex Ferguson is already planning to strengthen his squad for next season.

It is foreseeable that Chinese firms may be embroiled in various disputes in overseas markets as they combine strategic infrastructure, such as power grids, railways and ports, with market appeal.

Although not an architect associated with controversy, the pyramid embroiled Pei in a battle over whether or not this elegant project should be built.