Pieters is a Belgian golfer with multiple victories on the European Tour and has starred for Europe in the Ryder Cup.
The Antwerp resident started hitting shots at the age of five and turned pro in 2013 after playing his college golf for the University of Illinois in America.
He won his first European Tour event in 2015 when landing the D+D Real Czech Masters and a second followed just two weeks later.
A third title in 2016 helped win him a place on Europe's 2016 Ryder Cup team and he made a stunning debut by finishing as the event's top scorer.
Pieters has also flourished in Major championships and WGC events, but ended something of a form slump with victories in the 2021 Portugal Masters and 2022 Abu Dhabi HSBC Championship.
Pieters attended the University of Illinois and won individual titles at the 2011 Jack Nicklaus Invitational, the 2012 NCAA Division I Championship and the 2013 Big Ten Conference Championship.
In team events, he helped Continental Europe capture the 2010 Jacques Leglise Trophy and he played for Belgium in the 2010 and 2012 editions of the Eisenhower Trophy.
Pieters represented his country in the 2011 European Amateur Team Championship and was also a member of Europe's winning team in the 2012 Palmer Cup in Northern Ireland.
Turning pro and winning his card
Pieters skipped his final year at Illinois to turn pro in the summer of 2013.
He made his European Tour debut in the Open de France and finished a creditable tied 29th.
Later that year he headed to Q-School and came through all three qualifying stages to take the 20th card and secure his place on the European Tour for 2014.
Pieters showed flashes of his potential in his rookie season with second place at the 2014 Open de Espana and three other top 10s.
He comfortably kept his card by finishing 83rd on the Race to Dubai.
Breakthrough wins in 2015 and rise up the rankings
Pieters showed his intent for what would prove a breakout year in 2015 by finishing tied fourth at the prestigious Abu Dhabi HSBC Golf Championship.
He didn't quite build on that performance as expected but then came to life in a golden summer.
In August, he fired 20-under to score a three-shot success at the D+D Real Czech Masters and secure a first European Tour win.
And on his very next start just two weeks later, Pieters grabbed his second title after a one-shot win at the KLM Open in the Netherlands.
Those two victories helped him finish 29th on the Race to Dubai and break into the world's top 100 for the first time.
Another win, a Ryder Cup debut to remember and impact in the Majors
The next two seasons proved memorable for Pieters and built his reputation as one of Europe's brightest prospects.
He started 2016 by finishing runner-up in the Abu Dhabi HSBC Golf Championship and enjoyed another brilliant summer with second place in the D+D REAL Czech Masters followed by a victory - the third of his European Tour career - in the Made in Denmark.
Pieters also finished fourth in the 2016 Olympics and his well-timed displays prompted Darren Clarke to give him a captain's pick for the Ryder Cup in Hazeltine.
Although Europe lost, Pieters was the star of the show, winning four of his five matches and ending the week as the event's top points scorer.
With his reputation enhanced by moving into the world's top 50, Pieters secured an invite to the 2017 Masters at Augusta National.
It was a debut to remember as he took to the course immediately and finished in a tie for fourth.
Pieters also showed his ability to flourish in elite company by posting two top fives in World Golf Championship events in 2017 - the WGC-Mexico Championship and the WGC-Bridgestone Invitational.
Those finishes helped him end 2017 at 20th on the Race to Dubai, his best finish after finishing 24th the previous year.
He also hit a career-high 23rd in the world rankings.
Some frustrations but more wins
While his performances on the big stage had many predicting Pieters to become a top 10 player, the next few seasons didn't quite work out that way.
After ending 2017 ranked 36th in the world, he slipped to 72nd at the end of 2018, 82nd in 2019 and 84th in 2020.
And yet there were still some notable moments.
Pieters took tied sixth in the 2018 PGA Championship at Bellerive and won the 2018 World Cup of Golf alongside Belgian teammate Thomas Detry in Melbourne.
He landed a fourth European Tour win with a second triumph in the D+D REAL Czech Masters in 2019.
Pieters made just 13 starts in 2020 after taking five months off during the pandemic and becoming a father for the first time.
But he managed a pair of top threes at the Saudi International and the Celtic Classic and was second after 18 holes of the US Open before finishing tied 23rd.
In 2021, he capped a consistent year that had featured 11 top 20s either side of the Atlantic by winning the Portugal Masters. That gave him a fifth European Tour title at the age of 29.
He then added the 2022 Abu Dhabi HSBC Championship straight after New Year, but a return to the PGA Tour soon after saw another dip in his form.
Pieters became a Dad for the first time in 2020 when girlfriend Heather gave birth to a baby girl called Florence.
According to various sources, Pieters is worth $4million.