by Aaron Wilson
June 20, 02014
Miami Dolphins running back Knowshon Moreno has been sidelined with a knee problem.
Moreno has a knee injury and might need to have arthroscopic surgery.
The injury isn't regarded as serious.
Lamar Miller has been working with the starters.
The Dolphins had one of the worst running games in the NFL.
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Aaron Wilson covers the Ravens for The Baltimore Sun