Originally written on Fox Sports  |  Last updated 6/11/13
Jim Harbaugh has used the recent run of suspensions on the division rival Seattle Seahawks for performance-enhancing drug infractions as a reminder to his own San Francisco team: Cheating won't be tolerated. Harbaugh's reigning NFC champion 49ers had begun their three-day minicamp Tuesday when the coach was asked about the issue surrounding the Seahawks. ''Is it a concern? I've definitely noticed it,'' Harbaugh said of the Seahawks. ''You don't know what it is. Even when people say what it is, you don't know that that's what it is. I've heard this thrown out or that, but that's usually the agents or the players themselves saying it's, for example, Adderall. But the NFL doesn't release what it actually is, so you have no idea. You're taking somebody at their word that I don't know if you can take them at their word, understanding the circumstances.'' Seattle defensive end Bruce Irvin was suspended last month for using a banned substance. A first-round draft pick last year, he will...
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