Manly have suspended Test forward Anthony Watmough and hooker Terence Seu Seu for one NRL match after they were arrested for urinating on a Manly shopfront on Sunday night.

Watmough and Seu Seu were also fined a week's wages by the club, in addition to the $220 on-the-spot fine issued by police for offensive behaviour.

The pair will miss Manly's clash with Cronulla at Toyota Stadium on Saturday.

Sea Eagles chief executive Graham Lowe said the pair's behaviour was unacceptable.

"They have embarrassed themselves and the club and its sponsors and supporters," Lowe said in a statement.

"They have shown great remorse for their silly action and will pay a heavy penalty."

Watmough and Seu Seu provided a joint statement.

"We are bitterly disappointed with our actions and for the fact that we have let our teammates, our families and our supporters down," they said.

"It was a careless and stupid thing to do and we accept the suspension without complaint."

Th incident comes just a few months after Watmough had his driving licence suspended for speeding offences.

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