Super League have banned players' children from the pitch for safety and financial reasons, the Telegraph & Argus has learned.

All clubs in rugby league's premier competition have been warned to keep youngsters off the playing surface after matches, following complaints from sponsors that publicity photos were not usable.

Due to industry guidelines, Super League sponsors Tetley's are not allowed to use photos of under-18s in publicity, and it is a fear of upsetting them and other companies that is believed to have sparked the bizarre ban by the rugby authorities. It is understood that clubs may be fined for breaches of these regulations. A spokesman for Super League said: "I can confirm that this is a policy we discussed at a recent meeting of clubs.

"The reason behind it is two-fold. Firstly there are serious safety concerns. TV cameras, 17-stone athletes and children do not mix.

"There are also issues to do with public liability insurance that may arise from having children on the pitch. It is a serious health and safety issue.

"And, yes, there is a potential problem with alcohol-related sponsors."

The clampdown is thought to be particularly intended for the Grand Final, the game's showpiece event and the highlight of Tetley's sponsorship of the competition.

But Bulls star Jimmy Lowes was quick to condemn the new ruling.

"It is absolutely disgraceful," said the veteran hooker. "This is typical of the way rugby league is run. The players are treated as second-class citizens."

"If this is meant to be a family sport than how can they stop kids coming on? It makes you wonder if they even want youngsters at the games."