Tony Casillas: Players used 'DMSO'

Updated: February 7, 2013, 9:35 PM ET
ESPN.com news services

The alleged use of deer-antler spray by professional athletes was the hot topic of Super Bowl week, but former defensive lineman Tony Casillas said it doesn't compare to what players used during his playing career.

"When I heard about deer-antler spray, I said that's nothing. We used to use this stuff called 'DMSO,'" Casillas said last week in an interview with KRLD-FM in Dallas. "That's what veterinarians put on horses' muscles, and we used it in the locker room."

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