Golf's newest superstar seems to have the work ethic of its biggest superstar -- which may be a blessing and a curse.

Jordan Spieth admitted that he's tired and drained from all the international traveling he's done and vows to rethink his schedule in the future, according to Golfweek.com.

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The 22-year-old, No. 1 golfer in the world has made five international trips to play in golf events since October, with one still scheduled for Singapore next week at the Asian Open.

"The financial rewards from large appearance fees will please his bank manager but are proving to be hazards to Spieth's health and psyche," Golfweek.com reported.

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"It won't be something I'll do in the future, to bounce back and forth from Asia as much as we did, or Australia," Spieth said. "I'm very tired. As a team we're beat up mentally and physically. I'm not 100 percent right now. It shows in certain places."

Still, he finished tied for fifth at the Abu Dhabi HSBC Golf Championship last weekend, shooting an 11-under 277 -- not bad for an exhausted player. He finished five strokes behind eventual winner Rickie Fowler.

"The first day I was here, I was striping it," Spieth said. "Since then I have been a little weak, and my decision-making has been off."

That can't be a comforting thought for those whom Spieth competed against at Abu Dhabi.

Spieth obviously is beginning to command serious amounts of money in appearance fees for playing in all these events as the No. 1 golfer in the world. But he's playing a lot more events than some of the top golfers before him, according to USA Today's For the Win.

"In his last three seasons on tour, Spieth has played 23, 27 and 25 PGA Tour events, which means he plays far more than other great players in recent history," For the Win reported. "Vijay Singh, who became notorious for his heavy schedule, averaged 25 PGA Tour events between 1994 and 2014, while full seasons from Ernie Els, Tiger Woods and Phil Mickelson would average out to 18, 19 and 21 PGA Tour events per season, respectively. Even Rory McIlroy, in his last five full seasons on tour, played an average of 15 events a year."

Woods redefined the game with his weight training as well as practice routine, but his body has started to break down as he has reached 40.

That is a lesson for Spieth, who must find his sweet spot between staying sharp but still getting enough rest to keep him mentally alert and injury-free.

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