LaBoy's injury hurts 49ers' pass rush

Travis LaBoy's comeback from career-threatening foot problems stood as a positive story amid a frustrating season for the San Francisco 49ers.

The foot held up well enough this season for LaBoy to record five sacks, but a knee injury suffered Thursday night against San Diego has ended the outside linebacker's season.

The 49ers announced Saturday they had placed LaBoy and injured kicker Joe Nedney on injured reserve. They signed tight end Colin Cloherty and defensive tackle Will Tukuafu from the practice squad to fill their roster spots.

LaBoy had three sacks in the 49ers' first five games and two in their most recent three.