The 2026 Guinness Six Nations produced its usual share of thrilling matches and standout performers, with France ultimately lifting the title after a dramatic final round.

Ireland pushed them close throughout the championship, while Scotland impressed with several strong performances.

However, not every player enjoyed a successful campaign. A number of high-profile names struggled for form, failed to meet expectations, or simply could not influence games in the way their teams needed during the five rounds.

With the tournament now complete, here are six players whose performances fell short of expectations, ranked from six down to one.

6. Luke Cowan-Dickie (England)

Luke Cowan-Dickie endured a particularly difficult Six Nations, with his struggles most visible during England’s defeat to Ireland. After a modest showing the previous week against Scotland, the experienced hooker was unable to steady England when given his opportunity.

He was substituted after just 29 minutes following a spell that featured inaccurate lineout throwing and limited impact around the park. Defensive lapses also compounded the issues, making it a tough outing overall. Whenever he replaced Jamie George later in the tournament, the difference in reliability felt noticeable, and his performances fell well short of the standard England expect from such an experienced player.

5. Louis Rees-Zammit (Wales)

Louis Rees-Zammit’s return to the international stage has yet to deliver the attacking spark Wales had hoped for. Despite his electric pace and finishing ability, he failed to cross the try line throughout the championship.

Part of the problem has been Wales experimenting with him at fullback rather than on the wing, where he built his reputation. The positional change has limited his influence in attacking situations and occasionally exposed him defensively. While his raw speed remains a huge asset, the experiment has not paid off so far and Wales may need to return him to his natural role to get the best out of him.

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