"Yankee fans may have been worried about Mariano Rivera after three rocky outings last week, but the closer wasn't concerned.

Rivera calmed any fears Monday night, throwing a perfect ninth inning to earn his 31st save of the season in the Yankees' 7-4 win over the Royals. Asked if the crisis was over, Rivera chuckled.

"It's daily routine, guys," Rivera said. "I don't worry about it. I have peace of mind, believe me."

Rivera had been frustrated after his last save, having given up a three-run home run to Russell Branyan before closing the win against the Angels last Thursday."