Richmond is a club under siege after a disastrous start to the AFL season but Shaun Grigg says external attacks won't stop the Tigers working hard behind the four walls of their Punt Road fortress.

The club has come under intense scrutiny after an unconvincing round one win over Carlton was followed by a five-game losing streak that has them languishing in 15th place on the AFL ladder.

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But Grigg says the players' sole focus is on turning their season around - a task they still believe is possible despite admitted failures of skill execution and other fundamentals of their game.

"We respect the people within our four walls who are giving us advice ... we can't listen to all the external pressures or comments," Grigg told reporters on Tuesday.

"We just listen to our coaches and teammates and go about rectifying it.

"In here we believe that our best footy is good enough, which we've shown over the past couple of years. We've just got to get back to how we were playing and hopefully it will come out on game day."

Richmond's season hit a new low with last week's listless 35-point loss to an under-strength Port Adelaide at the MCG, where injuries to skipper Trent Cotchin (fractured cheekbone) and Kane Lambert (fractured ribs) compounded the Tigers' woes.

Neither will be present when Richmond take on reigning premiers Hawthorn at the MCG on Friday night, with star defender Alex Rance also missing as he serves out his two-match ban for striking Melbourne's Jack Watts.

"It's on all of us to step up and pick up the slack," Grigg said.        

"We definitely believe in ourselves ... we've just got to work hard on the training track and implement what (the coach) wants us to."