Cardinals sign center Melvin Fowler, place fullback Justin Green on injured reserve

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FLAGSTAFF -- The Arizona Cardinals have signed center Melvin Fowler to a one-year contract and placed fullback Justin Green on injured reserve with a knee injury.

Fowler is in his eighth NFL season. He played the last three years with Buffalo after signing as a free agent.

He started all 16 games for the Bills in 2006 and 2007. Last season, he played in 14 games, five as a starter.

Green was out of football last season after being released by Baltimore. He is out for the season with a partially torn knee ligament.

Coach Ken Whisenhunt says several fullbacks will be tried out to fill Green's roster spot.

The team also released center Donovan Raiola.

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