Pittsburgh Steelers wide receiver Plaxico Burress was carted off the field with an apparent arm injury today, according to reports.

Burress had his arm in a sling, according to the Washington Observer-Reporter.

Burress, 36, is trying to regain his old form, but this injury is a setback.

The extent and nature of the injury are unclear at this point, but it's a negative development for Burress that he needed this much medical attention right away.

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Aaron Wilson covers the Ravens for The Baltimore Sun.