'Tennis will never be same without you'

From racquet-smashing enfant terrible with a bad attitude and ill-advised ponytail to universally respected role model and modern icon, Roger Federer has attained almost saintly status.

More than 19 years after winning his first Grand Slam title at Wimbledon in 2003, which set him on the road to being acclaimed the greatest player of all time, Federer on Thursday announced his retirement.

At the age of 41 and trying to recover from a third knee surgery in 18 months, the great Swiss bowed to the inevitable march of time.

He leaves the sport with 20 Grand Slams, including a record eight Wimbledons, 103 titles and more than $130 million in prize money alone, all driven by a rare grace, laser precision and a signature one-handed backhand.

The artistry associated with the Swiss brought him a global legion of fans bedecked in 'RF' hats and almost mystic appreciation. A columnist once famously even penned a gushing article headlined 'Federer as Religious Experience'.

Juan Martin del Potro tweeted after Federer's announcement: "I LOVE YOU, Roger. Thank you for everything you've done in tennis and with myself. Tennis world will never be the same without you."

Federer also held the world number one spot for 310 weeks, including 237 consecutive weeks between February 2004 and August 2008.

His net worth was estimated in 2019 at $450 million and such is the cash-register recognition of the Federer brand that in 2018, he penned a 10-year, $300 million deal with clothing manufacturer Uniqlo. He was 36 at the time.

In his prime, Federer left opponents bamboozled.

"I threw the kitchen sink at him but he went to the bathroom and got his tub," sighed an exhausted Andy Roddick after losing the 2004 Wimbledon final.

His path to super-stardom wasn't always so settled. As a talented young player, Federer's hair-trigger temper threatened to stunt his progress. "I had a tough time getting my act together out on court, trying to behave properly. For me that was a big deal," he admitted.

At just 19, Federer famously defeated personal hero Pete Sampras at the 2001 Wimbledon tournament. Twelver months later, however, Federer exited Wimbledon in the first round.

It took a personal tragedy for him to press the reset. Just when he turned 21, his coach and close friend from his formative years Peter Carter was killed in a car crash in South Africa.

From that point on, the multi-lingual Federer committed himself to winning in style, no longer consumed by his inner demons.

Born on August 8, 1981 in Basel, to Swiss father Robert and South African mother Lynette, Federer started playing tennis at eight. Turning pro in 1998, he won his first ATP title in Milan in 2001.

His first extended rest, to recover from a knee injury caused by running a bath for his two daughters, led to a 2017 renaissance with a refreshed Federer winning an 18th major at the Australian Open.

It had been after the first of his five Australian Opens in 2004 that he claimed the world number one ranking for the first time.

Federer has eight Wimbledons, six Australian Open, five US Opens and a single Roland Garros.

He won 28 Masters, a 2008 Olympic doubles gold medal with close friend Stan Wawrinka and a Davis Cup victory for Switzerland in 2014.

Had he not competed in the same era as Rafael Nadal and Novak Djokovic, his trophy collection could have been more impressive.

Federer's stunning longevity saw him play 119 matches at Wimbledon (105 wins/14 losses), 117 in Melbourne (102/15), 103 at the US Open (89/14) and 90 at Roland Garros (73/17).