The 2018 PGA Championship teed off from Bellerive Country Club in St. Louis, Mo., this morning as a field of the world's best golfers took the course for the year's final major. Most of the field will be donning yellow during the tournament.
The yellow will come in many forms over the course of 72 holes - ranging from shirts to pins. Why?
It's an attempt to honor a veteran PGA Tour golfer who passed away earlier this week. Jarrod Lyle, an Australia native who played a number of years on the PGA Tour, died after a battle with cancer.
Lyle ended his treatment in his third battle with cancer earlier this week. He passed away shortly thereafter.
Rickie Fowler was one of the golfers who honored Lyle on Thursday.
Lyle turned professional in 2004. His best finish on the PGA Tour came in 2012 when he finished in fourth place at the Northern Trust Open.
He is survived by his wife Briony and their two daughters.