Griffit's time at Southampton began brightly. He made an instant impact on his Premier League debut, scoring a goal as a substitute in a 2–0 win over Blackburn Rovers in October 2003. His fearless approach and attacking instinct marked him out as a player with real potential. Later that season, he added another goal in a dramatic 3–3 draw against Newcastle United, again coming off the bench. However, despite these promising flashes, he struggled to establish himself as a regular in the Saints’ first team. The managerial changes and squad depth at the time limited his chances, and he made only seven league appearances over two seasons.

Seeking more playing time, Griffit looked to gain experience elsewhere and in January 2005, he was loaned out to Leeds United, then in the Championship and fighting to rebuild after their relegation from the Premier League. 'He's got a lot of pace and can play on either the left or the right,' Leeds manager Kevin Blackwell told the Yorkshire Post. 'His arrival could give us the opportunity to play David Healy in a more central role. He certainly gives us another option and is a welcome addition.'

The move was seen as a chance for both club and player—Leeds needed attacking depth, and Griffit needed minutes on the pitch. He joined Leeds on a one-month loan on January 6, 2005. Expectations were moderate, but there was hope that he could inject creativity into the side, especially with Aaron Lennon emerging but still very young.

Griffit made his Leeds debut on January 26, 2005, in an away match against Derby County at Pride Park. Coming on as a substitute for Julian Joachim in the second half, he was given around 25 minutes to make an impression. Unfortunately, the team struggled on the day, and Leeds lost 2–0. That single appearance would prove to be his only outing in a Leeds shirt. He remained on the bench for a few more matches but never got back onto the field before returning to Southampton on February 10. His brief stint at Elland Road became one of the more obscure chapters in Leeds United’s long history, often mentioned in fan lists of forgettable loan players—an unfortunate fate for someone with clear technical ability and a top-flight pedigree.

Following his return to Southampton, Griffit’s opportunities remained limited, and he was again loaned out—this time to Rotherham United, where he made two further appearances without scoring. Realising his future likely lay away from England, he left Southampton in 2006 and signed with Swedish top-flight side IF Elfsborg. In Sweden, Griffit found a more settled environment. Though used mainly as a substitute, he made 21 appearances and scored once, contributing to Elfsborg's successful campaign that saw them win the Allsvenskan title in 2006. His time in Sweden helped rebuild his confidence and provided regular playing time.

Griffit was loaned to IFK Norrköping in 2007–08, a move that placed him in Sweden’s second tier. There, he played 10 matches and was part of the squad that achieved promotion, though he again struggled to cement a starting role. In 2008, he returned to England for another shot at the Championship, this time with Crystal Palace. Unfortunately, his second spell in English football mirrored the first—he made only five appearances and failed to score, eventually leaving in search of greater opportunities.

That search took him to Belgium in 2009, where he joined URS Centre, a third-tier side. It proved to be a more productive period. Griffit played 17 matches and scored four goals, demonstrating once more that he had the ability to perform when given consistent time on the pitch. This strong showing opened a new door entirely—Major League Soccer in the United States.

In April 2010, Griffit signed with the Columbus Crew. He made an immediate impact in the US Open Cup and later scored in his MLS debut, coming off the bench to net against Houston Dynamo just three minutes after entering the game. The goal, and his overall contribution, impressed enough for the Crew to retain him through 2011. Though he made only four league appearances, he also featured in the CONCACAF Champions League and Open Cup matches, showing flashes of his former promise in a competitive league still growing in stature.

Griffit’s MLS adventure continued when he was traded to Toronto FC in July 2011. However, his time in Canada was brief and uneventful. He made no league appearances for Toronto, instead featuring only in Champions League matches, and was released at the end of the season. Returning to Europe, he spent the final chapter of his playing career in France’s lower leagues with AS Aulnoye and Feignies Aulnoye between 2012 and 2016. With Aulnoye, he made over 80 appearances and scored five goals, becoming a steady presence in regional football and a mentor for younger players.

Following his retirement from professional football, Griffit turned toward coaching and recruitment. He remained involved in the game through scouting work, reportedly taking up a role with RC Lens, helping to identify and guide the next generation of talent. His post-playing career also included coaching at the amateur and semi-professional levels, continuing to share his international experiences across France, England, Sweden, Belgium, and the US.

Léandre Griffit’s career may not have lived up to the early promise shown in his Premier League debut or his dramatic cameo goals, but it was far from insignificant. A globe-trotting winger with a willingness to adapt, Griffit experienced football in a variety of cultures and systems. Though his spell at Leeds United lasted only a month and yielded a single appearance, it forms part of a broader narrative—a career defined by perseverance, technical quality, and the continual pursuit of opportunity. His journey serves as a reminder of the many professional footballers whose careers exist in the margins—between brilliance and obscurity, between top flight and second tier—but who nonetheless leave their mark on the game in ways stats alone can’t fully capture.