Below is a summary of the full article. Click here for the full version or go back to LFC Live.net

Liverpool FC via Getty Images

Liverpool’s 3-1 comeback win over Southampton was another step toward the Premier League title.

But aside from the goals and drama, there was something unusual about the game.

Late in the match, Jarell Quansah came on for Liverpool.

That was their sixth substitution of the afternoon.

Normally, Premier League teams are allowed only five.

It left many fans wondering – how was this possible?

Liverpool have always been smart with their squad management, and they rarely make unnecessary changes.

So, there had to be a valid reason for the extra sub.

And there was.

The answer lies in a specific rule introduced in 2021 regarding concussions.

During the first half, Southampton’s Jan Bednarek had to be replaced due to a suspected concussion.

Because of this, Liverpool were allowed an “additional permanent concussion substitution.”

The Premier League follows the International Football Association Board’s (IFAB) rules on head injuries.

According to these rules, “if the referee stops a match for a potential concussion injury to a player, then the medical staff of that player’s team will enter the field of play to make an assessment while the tunnel doctor will review video footage of the incident.”

The rule further explains, “The team doctor will have as much time as is required to make an on-pitch clinical assessment of the player.”

“If there are clear symptoms of a concussion, or video provides clear evidence of concussion, then the team will be permitted to apply to replace the player with an additional permanent concussion substitution.”

That is why Liverpool were able to make six substitutions instead of five.

The rule is there to protect players, and in this case, it allowed both teams to adjust their lineups fairly.

Read more: The records broken by Mohamed Salah in Southampton clash

Want to get the latest Liverpool news direct to your phone