Melbourne Storm admit to using loophole for free interchange in Cameron Munster incident

The Melbourne Storm have admitted to taking advantage of loophole regarding free interchanges, according to reports.

Munster was taken from the field in the Storm's big win over the Roosters but returned shortly after.

The star five-eighth was taken from the field and replaced by Nelson Asofa-Solomona, before coming back on moments later for Christian Welch.

He was off the field for less than 30 seconds. A team is allowed a free interchange if a player is "fouled and injured by a player who is dismissed from the field, sin binned or placed on report" and only applies "when the injured player is immediately replaced," according to the NRL's rulebook.

Roosters enforcer Victor Radley was sin-binned over the incident.

"Munster was a tactical one," Storm general manager Frank Ponissi told The Daily Telegraph.

"There was nothing wrong with him. He said Radley hardly got him.

"To be brutally honest we were surprised Radley was sin-binned."

The NRL will reportedly consider stricter rules for bringing players off the field for head injury assessments after a weekend of controversy.

"He passed his on-field test but we wanted to be doubly sure," Ponissi said.

"Our main doctor was in the dressing room doing an HIA with Ryan Papenhuyzen.

"Our second doctor checked the vision then sent Cameron straight back out."