Before Ryan Dempster signed with the Red Sox in the offseason, he rarely pitched against the Yankees, spending the vast majority of his career in the National League as a member of the Marlins, Reds, and Cubs.
He pitched against them in 1998, 2000, and 2001, and didn’t face them again until 2011. He faced them once in 2012 as a Texas Ranger, and once earlier this season.
Each time, victory eluded the veteran, leaving him 0-5 with a 6.98 ERA in seven career starts as he entered Sunday’s game opposite Yankees lefthander CC Sabathia.
After 5⅓ innings and with a 6-4 lead, Dempster exited to a standing ovation from the sold-out Fenway crowd of 37,917 — presumably for plunking Alex Rodriguez in the second inning. Full story for BostonGlobe.com subscribers.