The 7-year-old was too big for those his age to tackle.

Mind-boggling footage of a giant seven-year-old towering over his rivals has highlighted an ongoing problem facing junior league officials in Sydney.

Even Canterbury Bulldogs chief executive Raelene Castle has been involved and yes, she confirmed the boy was indeed eligible for the under-eights grade.

The Samoan boy plays for St John's Eagles and is more than double the body weight of many of his rivals.

His opposition, the Berala Bears, have no hope of stopping him on his run to the line as the video shows.

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The chairman of his club Nasser Matta, told the Daily Telegraph there were even bigger kids playing.

"This boy's a gentle giant. He doesn't just run through the opposition to hurt other kids," Matta told the Telegraph.

"He's aware of his size. He could pick up kids with one hand if he wanted to but he's just a nice gentle boy. He's a good kid from a good family who just loves playing footy.

"I don't want the kid to think he doesn't deserve to play footy because of his size."

A Bulldogs official confirmed the boy's age from his passport.

Former Netball New Zealand boss Castle also spoke to the Bulldogs' junior rugby league to check the boy's credentials.

"We are certain the boy is under eight," Castle told the Daily Telegraph.

"This is one of the realistic challenges we face in our game.

"You move these boys up an age group and while their bodies are big enough to deal with it physically, they are not old enough mentally. It's a tough one that the NSWRL is now looking at."