He declined to directly address in any detail questions about a Sports Illustrated report that he sought help from a company that makes the unorthodox product to speed his recovery from a torn right triceps. Lewis was the NFL's leading tackler in the playoffs after missing 10 regular-season games with the injury.
The company, Sports With Alternatives To Steroids (SWATS), says its deer-antler substance contains a banned performance-enhancer connected to human growth hormone.
The 37-year-old Lewis, who has announced he will retire after playing against the San Francisco 49ers in Sunday's Super Bowl, dismissed the report as "stupidity."
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