What would happen if Tiger Woods, Rory McIlroy, and others sued the newly enlarged PGA Tour for loss of earnings over its decision to invite the Public Investment Fund of Saudi Arabia (PIF) as an investor in the newly enlarged global tour that includes the DP (European) Tour? This week’s events in professional golf are so extraordinary that you wouldn’t rule it out. However, my guess is that if players who refused to countenance accepting the huge payments on offer for joining LIV last year were to challenge the PGA’s decision, its newest shareholder, PIF, would simply ask, how much?…