Just pulled this from NFL.com - confirmation of a knee injury only, nothing about severity.
Chargers top pick Merriman hurts left knee
NFL.com wire reports
MINNEAPOLIS (Aug. 26, 2005) -- San Diego rookie outside linebacker Shawne Merriman left a preseason game at Minnesota in the first quarter with an injured left knee.
Merriman, the 12th overall choice in the draft out of Maryland, is challenging Ben Leber for a starting spot. After holding out the first week of training camp while his contract was negotiated, Merriman missed the Chargers' first preseason game. In his debut Aug. 21 against St. Louis, he had three tackles.
Merriman also skipped San Diego's offseason workouts on the advice of his agent, Kevin Poston, to avoid getting hurt before signing his contract.
AP NEWS
The Associated Press News Service