Cotchin only returned to action two weeks ago after spending two months on the sidelines because of a hamstring tear.
But the inspirational skipper is again suffering hamstring soreness and has been ruled out of the Adelaide Oval clash with the Crows.
Richmond’s head of football Neil Balme says Cotchin isn’t troubled by the same hamstring problem which caused him to miss a seven-game stretch earlier in the season.
“He is just a bit sore in the hamstring, but it’s not the same (injury),” Balme told reporters at Melbourne Airport on Wednesday.
“I reckon if he hadn’t have had the problem before he would have played.
“The fact we’re playing on the Thursday makes it more difficult.
“If we had played on Saturday or Sunday (he may have played) but we won’t take the risk.”
The Tigers now have 16 players on their injured list although Brownlow medallist Dustin Martin is expected to play in Adelaide despite suffering a heavy knock last weekend.
Richmond could regain Nick Vlastuin and Brandon Ellis from injury for the round 13 game but David Astbury will miss another week because of a hamstring strain.
Only five Richmond players are yet to miss a game this season.
Want to comment?
Send us an email, making it clear which story you’re commenting on and including your full name (required for publication) and phone number (only for verification purposes). Please put “Reader views” in the subject.
We’ll publish the best comments in a regular “Reader Views” post. Your comments can be brief, or we can accept up to 350 words, or thereabouts.
InDaily has changed the way we receive comments. Go here for an explanation.
We value local independent journalism. We hope you do too.
InDaily provides valuable, local independent journalism in South Australia. As a news organisation it offers an alternative to The Advertiser, a different voice and a closer look at what is happening in our city and state for free. Any contribution to help fund our work is appreciated. Please click below to become an InDaily supporter.