AARON RODGERS believes the NFL is doing all it can on concussion.

And the Green Bay Packers quarterback reckons better self policing is needed.

American football was rocked by Tua Tagovailoa's concussion incident last week.

The Miami Dolphins quarterback was carted off the field against Cincinnati Bengals with a head injury last Thursday.

Just four days earlier he re-entered the game against Buffalo Bills despite stumbling as he walked.

Tua was assessed and found to not have suffered a concussion, then allowed to carry on playing.

The NFL and NFL PA is conducting a review into the league's concussion protocols with changes reportedly coming.

Speaking in London on Friday, Rodgers said he's not sure what else can be done.

The Packers quarterback claimed: "I don’t know what else the NFL can do.

"I’m not always defending the NFL in every decision that they make.

"There’s independent people on the sideline who are watching for those hits.

"I think there has to be a closer eye on those particular plays.

"I just think we have to police ourselves as well and be smart about that.

"Players want to be out there. But we need to think about our long-term health."

Rodgers continued: "I think we all know the difference between getting rocked and getting concussed.

"I’ve had a few hits on the field and there’s a difference between getting nailed and going to the sideline with maybe your jaw or neck hurting a little bit, and actually having a concussion.

"Obviously watching the play with Tua back, you saw him kind of stumble after a hit.

"I think we all know what was going on there.

"For Tua I understand the predicament. You want to be out there and keep playing but we’ve all got to think about our long-term health because we know the effects of CTE have been well documented and there’s research around it.

"I don’t know what else the league can do.

"We’re trying to pull guys off the field. Like I said there’s multiple people watching for specific head injuries.

"We’ve got to police ourselves."

Rodgers also addressed the link between injuries and playing on artificial turf.

Green Bay play on grass at Lambeau Field.

But their game against New York Giants on Sunday will be played on artificial turf at Tottenham Hotspur Stadium.

Rodgers said: " I think it’s interesting to look at some of the numbers around injuries on grass compared to artificial grass.

"They do a good job but the standard isn’t the same across the board.

"If we’re going to keep doing artificial grass there needs to be maybe a little bit tighter standard, uniformity, really on grass field and on artificial grass.

"Tottenham’s pitch is obviously very important to them and we’ll play on whatever they put down."

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