What is 13 in Rugby League?

4 min.

Rugby league is a sport filled with numbers—whether it’s points on the scoreboard, tackles in a set, or the positions players wear on their backs. If you’ve ever watched a rugby league match, you might have noticed that players wear numbered jerseys, with the number 13 being particularly significant.

So, what does the number 13 represent in rugby league? Is it just a jersey number, or does it have a deeper meaning? In this guide, we’ll break down the role of the 13 in rugby league, how it compares to similar positions in other codes, and why it’s so crucial to a team’s performance.

Page Contents

What Position is Number 13 in Rugby League?

In rugby league, the number 13 jersey is worn by the lock forward—a key player in both attack and defense. The lock (sometimes just called “lock forward”) is one of the three forwards in the back row, playing alongside the two second-row forwards (numbers 11 and 12).

The lock forward (number 13) is a hybrid player, combining the physical strength of a forward with the agility and playmaking skills of a halfback. This player is often a team’s workhorse, making high-impact tackles, supporting attacking plays, and acting as a link between the forwards and backs.

The Key Responsibilities of the Number 13 (Lock Forward)

1. Defense: The Tackling Machine

One of the primary roles of the number 13 is to dominate defensive play. Locks are known for:

High tackle counts: They are usually among the top tacklers in a game.
Defensive line organization: The lock helps maintain the team’s defensive shape.
Stopping opposition breaks: A strong lock can shut down attacking plays before they gain momentum.

Famous number 13s like Cameron Murray (Australia) and Victor Radley (England) are known for their relentless defensive work.

2. Ball Carrying & Support Play

While props and second-row forwards focus on brute-force carries, the lock is often a more mobile ball carrier.

They run supporting lines behind halfbacks and playmakers, helping continue attacking moves.
Many locks break tackles with quick footwork and agility.
A good lock provides quick play-the-ball speed, helping the team gain momentum.

3. Playmaking Skills

One of the biggest differences between a lock forward and other forwards is their playmaking ability.

Some locks act as a “third playmaker”, passing the ball in attacking sets.
They distribute the ball to halves and outside backs, rather than just making direct runs.
Many locks have good kicking abilities, which add unpredictability to a team’s attack.

Locks like Isaiah Yeo (Penrith Panthers, NRL) play a modern, ball-playing role, similar to a halfback.

How Does the Number 13 Compare in Rugby Union?

The number 13 in Rugby Union is a completely different position. Instead of being a forward, the number 13 is a center, responsible for breaking defensive lines and setting up outside backs.

In rugby league, the number 13 is a hybrid forward-playmaker, while in rugby union, it is a fast-running back.

How the Role of the Lock Forward Has Evolved

1. The Traditional Lock (Pre-2000s)

Locks were purely defensive enforcers, making big tackles and doing the dirty work.
Their primary job was to win rucks and secure possession.
Less focus was placed on ball-handling and playmaking.

2. The Modern Lock (2000s–Present)

Locks are now expected to be more than just defenders—they act as support runners and distributors.
Many teams use their lock as an extra playmaker to create attacking opportunities.
Elite locks have developed passing and kicking skills, making them unpredictable threats.

The best modern locks, like Cameron Murray and Jake Trbojevic, are agile, skillful, and tough, making them invaluable assets to their teams.

Famous Number 13s in Rugby League History

Some of the greatest rugby league players of all time have worn the number 13 jersey:

1. Cameron Smith (Australia & Melbourne Storm)

Played as a lock before transitioning to hooker.
Considered one of the smartest players in rugby league history.

2. Paul Gallen (Australia & Cronulla Sharks)

A tireless workhorse, leading tackles and ball carries.
Helped Cronulla win their first-ever NRL premiership in 2016.

3. Kevin Sinfield (England & Leeds Rhinos)

One of the best leaders in Super League history.
Known for his incredible endurance and tackling ability.

4. Isaiah Yeo (Australia & Penrith Panthers)

A modern lock with excellent playmaking skills.
Helped Penrith win back-to-back NRL Grand Finals in 2021 & 2022.

External High Authority Links

To learn more about the role of the lock forward, check out these resources:

NRL Official Website – Learn more about modern rugby league tactics.
Super League Official Website – Get insights into the best players in European rugby league.
Rugby League World Cup – Find out how international teams use their locks in the biggest games.
The History of Rugby League Positions – See how the lock forward has evolved over the years.

Call to Action

Now that you know why the number 13 is so important in rugby league, what are your thoughts on the role of the modern lock forward? Do you prefer traditional enforcers or playmaking locks?

Let us know in the comments below! If you found this article useful, share it with your fellow rugby fans and subscribe for more insights into the game!