The NSW star was stood down from Sunday’s win over the Panthers after missing the team bus.

It has also been revealed he missed the plane back from Brisbane following the club's Round 24 defeat.

It was a massive call from the club who needed to win the game to keep their season alive.

The joint-venture must beat the Bulldogs on Sunday to be any hope of making the semis, however, McGregor won’t be swayed as their finals campaign hangs in the balance.

"Next week's next week," he said.

"Let's worry about celebrating tonight."

"Discipline is important to our footy team and on game day especially.”

Dugan, who joins the Sharks next season, has a history of off-field incidents including his well-publicized bender in the lead-up to Origin III.

Kurt Mann replaced Dugan and starred and could wear the No.1 against the Bulldogs on Sunday.

"If you want to drive standards and disciplines it doesn't matter what round it is, or what's on offer,” McGregor said.

"It's what the club needs, and our club needed to make a statement whether it be Josh or any other player in the side."