Why did Louis Rees-Zammit fail to break into the NFL?
Louis Rees-Zammit was the biggest name to have entered the NFL through the International Player Pathway programme in early 2024. A superstar in rugby union in his own right, the Welsh wing had already amassed 32 caps for his country, toured with the British & Irish Lions, and tasted Six Nations glory by the tender age of 22.
Blessed with blistering pace, having clocked a 4.43-second 40-yard dash during his pro day, and a unique blend of athleticism, Rees-Zammit seemed tailor-made to be an asset for NFL teams. Yet, just 18 months later, without ever taking a single snap in a regular-season game, he’s heading back to rugby union. This swift yet unsurprising u-turn underscores the brutal realities of crossing over to the NFL, even for the most talented international athletes.
Rees-Zammit’s NFL journey began with promise but quickly fizzled into frustration. After impressing in the International Player Pathway’s training camp, he signed with the Kansas City Chiefs in April 2024, a team fresh off back-to-back Super Bowl wins. Preseason offered glimpses of his raw speed and exciting playmaking ability, but his stat line was underwhelming: just one catch for three yards across three games.
Ultimately waived by the Chiefs just months later, before joining the Jacksonville Jaguars’ practice squad, where he spent the entire 2024 season without being elevated to the active roster, this chapter for Rees-Zammit, that promised so much but delivered so little, is now over. So, where did it go wrong, if there is at all a reason why he failed to make an impact?
It boils down to the immense adaptation required when transitioning from rugby union to the NFL. American Football demands not just physical prowess but a deep understanding of its intricate schemes, blocking assignments, and other decision-making ability, which makes a fundamental understanding so hard to grasp for someone so new to the game.
Rugby players like Rees-Zammit excel in open-field running and evasive manoeuvres, but the NFL’s structured plays, helmeted collisions, and emphasis on route-running or pass protection are still fairly alien territories. His preseason performances highlighted this gap; while his speed was evident, he struggled to translate it into consistent production against seasoned defenders.
Moreover, the cultural shift can’t be underestimated. Moving from the UK to the US, adapting to a new lifestyle, and enduring the grind of practice squads without game time likely took its toll. A persistent back injury during his time didn’t help, but even without it, the competition in the NFL is ferocious. Rosters are stacked with homegrown talents who’ve played the game since childhood, leaving little room for late bloomers, no matter how gifted.
His stint lasting less than two years speaks volumes about the impatience inherent in such bold career switches. Rees-Zammit himself hinted at this in June 2025, suggesting he had ‘one to two more years’ to make it, but ultimately chose to bail earlier.
Why the brevity? I believe it’s a mix of self-realisation and opportunity. At 24, he’s still in his prime for rugby, where clubs are already queuing up with unbelievable interest, particularly with opportunities to earn good money in the sport in France and Japan.
Lingering on a practice squad in the NFL, earning a fraction of that potential and watching games from the sidelines, must have felt like stagnation. The pull of home, the familiarity of rugby union, and the chance to reignite his international career with Wales, in desperate need of a saviour, proved too strong.
What does this mean for international players, even superstars, eyeing the NFL in the future? It’s a stark cautionary tale. The International Player Pathway has opened doors since 2017, and success stories like Philadelphia Eagles’ Jordan Mailata (who transitioned from rugby league and took years to start) show these stories are possible. But they are exceptions, not the rule. Rees-Zammit’s quick exit suggests he recognised the odds were stacked against him and opted for a surer path.
Even with superstar credentials in another sport, the learning curve is steep, the competition unrelenting, and the window for impact narrow. Future aspirants must temper dreams with realism: it often requires years of development, not months, and a willingness to endure anonymity on practice squads. For the NFL, this might deter some, but it could also refine the programme, focusing on athletes with closer skill overlaps or providing more tailored coaching.
Ultimately, Rees-Zammit’s tale reminds us that while the American dream gleams brightly, it’s not easily grasped by those from afar. As he returns to rugby, one can’t help but wonder if more will follow his path, or heed his warning.
