St Kilda ruckman Paddy Ryder gets a kick away against Collingwood in round three. Picture: AFL Photos

ST KILDA has been forced into a late change ahead of its clash with reigning premier Richmond, with veteran ruckman Paddy Ryder omitted from the side.

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Small forward Dean Kent replaces Ryder, who has been managed, with young gun Rowan Marshall now likely to handle the bulk of the ruck responsibilities.

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The Saints had already made one alteration for the match earlier this week, with speedster Nick Hind replaced by athletic tall Josh Battle.

Richmond is unchanged from the team named on Thursday evening, which included four players being dropped after last week's disappointing loss to Hawthorn.

Daniel Rioli, Ivan Soldo, Jack Graham and Marlion Pickett have all been axed, with superstar Dustin Martin, premiership ruckman Toby Nankervis and defensive duo Kamdyn McIntosh and Liam Baker returning to the team.