Cleveland Golf knows it is close to the border with an online page promoting wedges with customizable logos, using a trio of "Augusta 13" wedges, not themselves for sale, as examples.

WSJ: Augusta: Look but Don't Touch

They often now include automatic digital signatures with a sender's contact information or witty sayings, pleas to save trees and not print them, fancy logos and apologies for grammatical errors spawned by using a touch screen.

WSJ: Email Disclaimers Proliferate

But Mr Hamilton also carries several other corporate logos, including that of a Chinese company which, as eagerly as any other, is using sport to promote its brand.

ECONOMIST: How one Chinese company is making a name for itself

It dates back to 2004, when American Needle, an Illinois-based hat maker, brought an antitrust case against NFL, claiming the league was using its monopoly power to muscle it out of its fair share of revenue for caps it made bearing NFL logos.

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