"The fact that he is of the age he is, that's a testament to his work ethic. If you see what he goes through after he pitches late at night, with a workout, there's a reason why he's been durable and an elite performer. He's talented and he's got a great work ethic."
• Red Sox right fielder Shane Victorino already had to miss the trip to the White House because of the flu, and there's a chance he'll also be absent during Friday's ring ceremony.
"He's in quarantine. He's got the flu," said Farrell. "He was able to go in and get treatment on his [right] hamstring, but other than that, we're keeping him away from everybody else. He's still highly contagious."
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.