The Fremantle Dockers have named Luke McPharlin, Hayden Crozier and Tommy Sheridan in their inital 25-man squad to take on the Western Bulldogs on Sunday.

TABtouch 22 squad

That group trained together on Friday morning while those playing in the WAFL, including Tendai Mzungu, trained separately.

Lyon said rotating players in and out of the side to give others opportunities was not an option he was considering.

"Whoever deserves to play, plays," the coach said.

"We've got high integrity in our selection. We don't gift games.

"We certainly don't just push people out who deserve their spot. At the end of the day, it's their careers. If we were flippant, they wouldn't trust their coach or match committee."

Lyon said strength in depth was critical to Freo’s success as he was certain injuries would hit them throughout the year.

"As night follows day, injuries will come,” he said.

“It is good we've got players of the calibre of Sheridan, Tendai, Crozier, Connor Blakely and Brady Grey, who can come in and step up.

"That's really important. Premierships and great campaigns are won by about 30-32 players. You can't get it done with 22."