A more complete list from injuryupdate.com (thanks to Y&B)
Player Injury Onset Estimated Return
Carl Peterson osteitis pubis Pre-season Indefinite
Trent Knobel ankle injury Rnd 1 Indefinite
Unsure of diagnosis. Missed much of last season with a chronic ankle problem.
Troy Simmonds fibula fracture Pre-season Rnd 3
Had pins inserted for a fractured fibula.
Nathan Brown shin injury Pre-season Rnd 3
Has developed a hot spot in the leg he broke and will miss 2 weeks at the minimum.
Will Thursfield knee injury Rnd 1 Rnd 3
Kent Kingsley ankle sprain Pre-season Rnd 4
Has had surgery and expecting an early season return
Ray Hall hip cartilage injury Pre-season Rnd 4
Mark Coughlan knee ACL Last season Next pre-season
Reinjured his knee and faces furtehr reconstructive surgery and will miss the entire season.
http://www.injuryupdate.com.au/afl.php?sport=AFL&team=Richmond&mascot=Tigers