Francesco Molinari and Tommy Fleetwood will duke it out for the Race to Dubai but former Ryder Cup captain Paul McGinley is still shocked by recent scheduling decisions by Rory McIlroy and Justin Rose.

With Rose skipping the season-ending $8 million DP World Tour Championship in Dubai this week and McIlroy strongly threatening not to play the minimum four events required to keep his European Tour membership next year, McGinley finds the self-serving decisions of Europe’s top two stars hard to believe.

"It's quite extraordinary that Rory's not going to play just two more events to fulfil his European Tour membership next season," McGinley said in his Sky Sports column. "It's very disappointing and it is obviously a blow for the European Tour.

"I've been racking my brains wondering how that can be. Obviously, Rory sees it in other ways and has got his own rationale for that, although I'm finding it hard to understand!"

McIlroy has said he's got just two "pure" European Tour events pencilled into his schedule before the end of August with Dubai Duty Free Irish Open host McGinley a potential victim if the Holywood star opts to play the Scottish Open as his warm-up for The Open rather than heading for Lahinch the previous week.

But what McGinley finds even more baffling is McIlroy’s threat to stay away from Europe’s strong season-ending events too.

"The FedExCup finishes in August next year, so you've got all of September, October, November and December where the PGA Tour is played in Malaysia, Korea and various other places," McGinley wrote.

"Is Rory going to play in those rather than play in Dubai, where he has had unbelievable success and offers the exact same prize money as those events? Or is he just not going to play at all over the last four months?"

McIlroy said he'd never give up his membership in a Ryder Cup year but McGinley is disappointed by the Co Down man's intentions.

As for the high profile absences of Ryder Cup stars Paul Casey and third-ranked Rose, who forfeits a potential $600,000 payment from the Race to Dubai Bonus Pool as well as guaranteed prize money, McGinley the era of total player power as a massive problem for golf's administrators.

"That just goes to show how much money is available to the top players and how much they can walk away from," he said.

Shane Lowry, who is 43rd in the Race to Dubai, and 54th ranked Paul Dunne are not complaining about the absentees as they chase the cash as well as valuable world ranking points.

Dunne must finish second to make the top 30 in the final Race to Dubai standings who qualify for The Open while Lowry, who tied for second on the Earch Course last year, must be solo fourth at worst if he's to tick Royal Portrush off his wish list for Christmas.

McIlroy is chasing a winning end to a frustrating 2018 and that could be a problem for defending champion Fleetwood, who must win at Jumeirah Golf Estates to deny Open champion and Ryder Cup partner Molinari the Race to Dubai title.

“I know we said this and we're going to sound really cheesy but if I don't win, I'd rather see him win than anyone else," Molinari said of the other half of the "MoliWood" partnership that lit up the Ryder Cup.

Meanwhile, on the PGA Tour, Pádraig Harrington, Seamus Power and Graeme McDowell bring their competitive seasons to an end in The RSM Classic at Sea Island in Georgia.

All eyes will be on big-hitting young gun Cameron Champ (23), who will be bidding to back up his breakthrough win in the Sanderson Farms Championship with another victory.