Rickie Fowler wore a yellow shirt to honor Jarrod Lyle. He then shot 65 to lead the PGA Championship

Rickie Fowler had planned on wearing a dark blue shirt during the first round of the 100th PGA Championship at Bellerive. After the passing of former PGA Tour player Jarrod Lyle on Wednesday, Fowler decided to wear a yellow shirt instead.

Yellow had been the color of support for Lyle, who often wore a yellow bucket hat, as many PGA Tour players have recently been wearing yellow ribbons in support.

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Wearing yellow on Thursday, Fowler shot a 5-under 65 to take a two-stroke lead into the clubhouse.

"It was tough news yesterday," Fowler said.. "So definitely happy that we could be here and supporting Jarrod. It's been a tough few weeks, especially talking with guys that were also close with Jarrod."

Fowler said he was lucky enough to talk to Lyle last Friday.

"One thing that did help is hearing kind of from him how he felt. He sounded like he was in a good spot. Obviously that's not something that's easy to deal with. And it's been fun to be thinking about him while we're out there playing because he would probably be the one to kind of kick you in the butt if you started feeling sad or bad, he would kind of give you a hard time and tell to you man up or something along those lines. Maybe not those same words.

"So it's been enjoyable celebrating his life and we'll continue to do that."

Fowler wasn't the only player to honor or share memories about Lyle. Here are a few other reactions from players at the PGA Championship.

Jason Day, a fellow Australian and close friend of Lyle, teared up when talking about his friend.

"I lived across the street from him when we first started out in Orlando," he said. "He's a good buddy of mine. It's obviously heartbreaking to see. I've known Jarrod for a long time, and obviously my thoughts and prayers go out to Bri and the two kids."

"He battled half his life. And the crazy thing is he was always upbeat and positive. No matter what you did, you could be playing terrible, and if you're playing golf with him, you always walked off the golf course happy. For him to first get diagnosed with it when he was 17 years old and then battled three times, it just goes to show how much of a fighter he was inside to be able to keep pushing on even though it is painful to go through the stuff that he went through."

Pat Perez: "I was on a mad rush out there, because they didn’t have [a yellow ribbon] on the tee. Find me a ribbon! And one of the media guys, he said, 'You seem pretty adamant about it. You want it more than I do.'

"He gave me his, and I said, ‘Thank you.’ I put that on and I thought about him all day. 

"Jarrod Lyle, poor Jarrod, that was what was on everybody’s mind today. I thought about him a lot, and I don’t even know him that well. I don’t even know him, and I felt terrible. The fact that he was married, has two kids, the fact they knew he was going to have trouble and the daughters have to go through life without him … I got choked up a couple times and I don’t even know the guy. I just know that he’s part of the PGA Tour brotherhood out here. 

"For me, because I’m going to have a daughter and we’re starting a family, I was talking to my wife (Ashley) about it last night, and it’s got to be so horrible what they’re going through. Everybody out here feels so bad. I sat with Poulter at breakfast this morning, and we were watching the deal on Morning Drive … you don’t even know what to say. It’s so horrible. I didn’t really know him, but I’d heard so many times that he was such a great guy. I wish now I would have gotten to know him a little better."