Key defender Sam Fisher is a late withdrawal for tonight’s match after experiencing back soreness this morning and will be replaced in the side to take on the Bulldogs by Luke Delaney.

Head of Football Performance Jamie Cox said the late change would allow St Kilda to bring more experience into the backline.

“Unfortunately Sam Fisher experienced back problems this morning and will be replaced like-for-like in the side by Luke Delaney,” he told SAINTS.com.au.

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“Delaney played well on Tom Boyd last time the two teams met earlier in the season so we feel he is the best available match-up.”

St Kilda informed the AFL and the Western Bulldogs at the earliest convenience on Saturday.

Delaney was not among the three emergencies originally named in the side.