Tiger Woods, arguably the greatest golfer of all-time, has failed to recapture the magic he once displayed in the early 2000s. The soon to be 40-year-old veteran has not won a single major since the 2008 United States Open leaving his career at 14 major championships, four behind the great Jack Nicklaus.

So many factors have contributed to Woods' demise. Here are the top five reasons Woods has been unable to win another major title.

1. Competition

It's no disrespect to Woods, but he didn't exactly face an extremely tough field in his prime. Outside of an above average Phil Mickelson, Woods was never really pushed to the brink on a consistent basis. Woods is obviously the best golfer of the 21st century, but he never had that true rival, like Nicklaus had Arnold Palmer. The competition in golf now is higher than it's been in decades. Jordan Spieth, Jason Day and Rory McIlroy are all on top of their game providing must watch action in every major. All three of those golfers are below the age of 30.

2. The Scandal

Things really went downhill after this. Woods was on top of the golf world, and then suddenly he got knocked off it by the infamous infidelity scandal. When this occurred in 2009 Woods was still ranked No. 1 in the world. Now, Woods ranks an unimaginable 400. Woods hasn't had the same confidence ever since, and he's fired his swing coach multiple times. For the next year and a half after this event, Woods was asked more about the scandal than golf. Unfortunately for Woods, he has not returned to stardom n the golf course since this notorious event.

3. Injuries

Woods has dealt with so many injuries throughout his career, it was bound to finally catch up with him. The big injury bug hit Woods in 2008, particularly in the knee area. Constant surgeries, early withdrawals, shots and back spasms have plagued Woods over the last seven years. Thankfully, for Woods and golf fans everywhere, this didn't happen earlier in his career. Woods has fought the injuries for quite some time, but at some point, it's just too much to overcome.

4. Y.E. Yang

This is the one that got away. This is the single worst defeat of Woods' career, and the one he will never get over. Woods was leading after three days and 54 holes but couldn't hold that lead at the 2009 PGA Championship. Woods is the greatest front-runner in golf history. This is the only time he has ever blown a final day lead at a major, and it came to someone who has never won anything. Y.E. Yang shot two under on Sunday while Woods plummeted with a miserable three over to finish three shots back. Neither woods or Yang have won a single major since that incredible day in Minnesota.

5. Father Time

Golf may not be football or hockey, but it's still a demanding sport. Less than 10 percent of all majors are won by players over the age of 40. Age, like injuries, have caught up with Woods over the years. Three of the four major winners last year were under the age of 29. Sure, Nicklaus won the Masters in 1986 when he was 46 years old, but that kind of stuff doesn't happen on a normal basis. The newer generation of golfers have clearly taken over.

 Follow Damon Salvadore on Twitter @DamonSalvadore1