The New York Yankees will likely be without starting catcher Brian McCann after an MRI on the veteran backstop showed some inflammation in his left knee.

The 31-year-old has a slight MCL sprain after he tweaked his knee attempting to block a ball in the dirt from right-hander Dellin Betances in the seventh inning of Tuesday's 13-3 thumping of the Boston Red Sox, ESPN's Wallace Matthews reports.

Manager Joe Girardi told reporters McCann will be available "if he needs him," but it's very likely he'll rest his starter.

McCann is hitting .255/.325/.477 and his 18 home runs and 65 RBIs are tops among American League catchers.

John Ryan Murphy will start behind the plate for New York on Wednesday.