A set of trainers worn by Michael Jordan has been sold for $8m(£6.3m), says auction house Sotheby's. The six individual shoes were worn by Jordan during his six NBA championship wins in the 1990s.

These shoes were both sold in limited releases, so why did Jordans become so much more expensive? It all has to do with the value of the Jordan brand and how it makes and markets its iconic sneakers.

Tim Newcomb covers tennis gear/business ... brand signed Tommy Paul and the American came in asking for the Jordan Thompson shoe. “Now he has overtaken me in the rankings, and it has become ...