The 14-time major champion can topple Luke Donald by winning the World Golf Championships-Bridgestone Invitational tournament for the eighth time as long as the Englishman finishes no higher than third come Sunday.

CNN: STORY HIGHLIGHTS

Bridgestone has risen to second in U.S. golf-ball sales by exploiting a niche in low-compression balls, but any new short-ball designs will require a bundle of new techniques and processes, the best or most efficient of which could fall under a competitor's patents.

WSJ: Why a Ball Rollback Might Not Fly | Golf Journal by John Paul Newport