The match, held at the ATP 500-level event in his home country, marked the end of a journey that saw Wawrinka establish himself as one of the most significant players of his generation. Despite a spirited performance, the Swiss veteran could not overcome his Czech opponent.

Following the conclusion of the match, Lehecka expressed his respect for the outgoing champion. The Czech player noted that it felt unusual to be on the opposite side of the net for such a significant moment in tennis history.

"I think that today is about celebrating Stan's legacy, celebrating his career," Lehecka said during his on-court interview. "It is a pleasure and I will never forget this match." Wawrinka acknowledged the home crowd one final time before leaving the court.

Wawrinka’s career was defined by his ability to challenge the sport’s most dominant figures. Alongside Andy Murray, he remained one of the few players to secure multiple Grand Slam titles during an era largely controlled by Roger Federer, Rafael Nadal, and Novak Djokovic.

His first major breakthrough arrived at the 2014 Australian Open, where he defeated Rafael Nadal in the final. This victory established Wawrinka as a formidable big-match player, a reputation he solidified throughout his peak years on the professional circuit.

In 2015, Wawrinka claimed his second Grand Slam title by defeating Novak Djokovic in the French Open final. He completed his trio of major trophies the following year at the 2016 US Open, once again overcoming Djokovic in the championship match.

Beyond his Grand Slam success, Wawrinka achieved a career-high ranking of world number three. His trophy cabinet includes 16 tour-level titles, highlighted by his sole Masters 1000 victory at the 2014 Monte Carlo Masters.

Wawrinka also enjoyed notable success in team and international competition. He partnered with compatriot Roger Federer to win the Davis Cup for Switzerland and secured a gold medal in the doubles event at the 2008 Beijing Olympics.

The Swiss player’s career was not without challenges, particularly regarding physical fitness. Following his fourth major final appearance at the 2017 French Open, a persistent knee injury sidelined him for several months and impacted his consistency in later years.

Despite these setbacks, Wawrinka continued to compete on the ATP Tour for nearly a decade, maintaining his passion for the sport. His retirement marks the departure of another iconic figure from the golden era of men's tennis.

While his professional tour career has ended, fans will have one final opportunity to see the Swiss star. Wawrinka is scheduled to participate in a farewell exhibition event titled "One last backhand" in Geneva on 19 December, featuring Roger Federer and Andy Murray.

Wawrinka leaves the sport with a legacy of powerful one-handed backhands and a history of overcoming the world's best players on the biggest stages. He is expected to be eligible for the Tennis Hall of Fame in five years.

The Swiss Indoors tournament continues in Basel, with other notable players including top seed Ben Shelton and Novak Djokovic remaining in the draw. Djokovic is set to begin his campaign on Wednesday against Ugo Humbert.

As the tennis world reflects on his retirement, Wawrinka’s impact remains clear. His ability to disrupt the dominance of the 'Big Three' at crucial moments ensured his place as a respected and memorable champion in the history of the game.