LA QUINTA, Calif. — When it comes to the best moments of Phil Mickelson's illustrious professional golf career, the final putt on the 18th green during the 2004 Masters -- a putt that secured his first major title -- ranks right up near the top of the list. 

Mickelson's reaction to the putt was equally as memorable -- his arms and putter held aloft as he jumped into the air. The moment was so big, in fact, that Mickelson decided to have the silhouette of him doing the famed Masters "jump" stitched on the chest of the black pullover jacket he wore during Thursday's opening round of the CareerBuilder Challenge. 

The silhouette was also spotted on different signage around the course with Mickelson being the tournament's ambassador. However, it wasn't until the opening round that many realized there might be something more to the new logo. 

During his post-round press conference, Mickelson acknowledged there was indeed something in the works regarding the logo. 

"We've been working on something that we'll be involved with last in the year that I'm not really ready to talk about," Mickelson said, "but it's just been a fun offseason, in that, although I've had surgeries, I've been able to spend time with my family and kind of plan for some things in the future and it's been really an exciting time." 

Mickelson made his much-anticipated competitive return at the CareerBuilder Challenge after a brief layoff due to two separate sports hernia surgeries on Oct. 19 and Dec. 12. He closed with a birdie on the last to shoot 4-under 68 at La Quinta Country Club.