Interlude: Rules
NHL: NHLPA head: Time has come to consider fight rules
NFL: League says Warner’s fumble should have been reviewed
NFL: Claim: Texans ran illegal workouts
ELITEXC: Strikeforce to buy ProElite assets
UFC: Nevada regulators probing St. Pierre-Penn fight
INDYCAR: Castroneves insists he’s innocent of tax charges
NASCAR: All drivers clear first drug tests; some crew fail
BOXING: Two-division champ Calzaghe retires unbeaten

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