Long before he was the poster child for LIV Golf, Phil Mickelson was a must-see on television. He emerged as one of the most prominent golfers on the PGA Tour for a long time as he has had quite an illustrious career.The Flushing It Twitter account took fans all the way back to Mickelson's first victory on the PGA Tour. This was 32 years ago and Mickelson was just the seventh amateur (he was in college at the time) to win a PGA Tour event and remains the last one to ever do it.Flushing It@flushingitgolf32 years ago, as a 20 year old college junior, Lefty became the 7th amateur to win on the PGA Tour and he’s still the last player to accomplish this feat. Check out the popped collar swag btw, always the entertainer! 2802932 years ago, as a 20 year old college junior, Lefty became the 7th amateur to win on the PGA Tour and he’s still the last player to accomplish this feat. Check out the popped collar swag btw, always the entertainer! https://t.co/qPj5M8a8z9Fans are split on how to feel about this. Many are frustrated with Mickelson's decision to defect to LIV Golf. Others miss the old Lefty, who was a threat to win every time he stepped on the green.One fan believes that Mickelson only got worse from there, perhaps highlighted by his current status in the world of golf.Golf@golfundrpar@flushingitgolf It’s was all downhill from there.2@flushingitgolf It’s was all downhill from there.One fan was very upset with the video.Michael@fulredy@flushingitgolf 🤮🤮3@flushingitgolf 🤮🤮Others remarked on how good Mickelson's swing was even then. He's long been a consistent force on the green and his beautiful swing is a big reason why.Matt@Mixtape_Matt@flushingitgolf Disastrous finish, but what a golf swing.1@flushingitgolf Disastrous finish, but what a golf swing.A fan stated that, despite everything that has happened, Mickelson remains one of his favorites in the history of the game.Jordan Rice@TriStar423@flushingitgolf Still in my top 3 favorite Golfers ever2@flushingitgolf Still in my top 3 favorite Golfers everAnother remarked on Mickelson's competitive nature, something that helped him stand apart from other golfers of his era.Winning Punter - found the Golden Goose@Freedailytrades@flushingitgolf A brilliant competitor1@flushingitgolf A brilliant competitorSince Mickelson is currently on LIV Golf and appears to have no regrets or plans to return to the PGA Tour, one Twitter user pointed out that this may never happen again.Mickelson may never play a PGA Tour match again. An amateur may also never win a PGA Tour event again, either.david@davidinnanen@flushingitgolf might never happen again1@flushingitgolf might never happen againAnother regretted Mickelson's decision.Wecandobetter@wecandobetter79@flushingitgolf A shame he ultimately sold his soul to the saudis2@flushingitgolf A shame he ultimately sold his soul to the saudisOne had harsh words for the golfer, saying he has a legacy of failure now.Bruce Ratcliffe@BruceRatcliffe@flushingitgolf He doesn’t play golf on the PGATOUR. He is no longer a professional golfer, rather, a mere exhibitionist. He has turned his legacy into failure.@flushingitgolf He doesn’t play golf on the PGATOUR. He is no longer a professional golfer, rather, a mere exhibitionist. He has turned his legacy into failure.Mickelson is clearly a very controversial figure. His decision to join LIV Golf has arguably been a catalyst for the league's success thus far. He's been a fiery advocate for them, too, so without him, there may not be a league.That hasn't sat right with many avid PGA Tour fans. The divide exists thanks to LIV Golf's existence, whether that's the fault of the Tour or not, and Phil Mickelson has played a key role in that.Why did Phil Mickelson leave the PGA Tour?Phil Mickelson spent three decades on the PGA Tour. The biggest reason he left the tour in the first place were the differences he had with how the league operated. Here is what the 52-year-old stated: "I do believe that things are working themselves out the way they should. And I’m very happy the top players are having a voice and being valued for really what they bring to the table and how they drive the game of golf. I would have loved to done things differently, but I’m very happy with the way things are coming about on both sides.’’Phil Mickelson joined LIV GolfHe believes LIV Golf does a better job of listening to players and giving them what they want. It doesn't hurt that he signed a massive signing bonus when joining, either.