Yankees manager Aaron Boone said Friday that Matzek (oblique) has a "pretty good strain" and will be sidelined a few weeks, Greg Joyce of the New York Post reports.

EDGE Analysis

Matzek hasn't appeared in a Grapefruit League game since Feb. 25 due to an oblique strain. The good news is Boone noted that Matzek is now asymptomatic and could resume a throwing program Monday. The lefty reliever had been in line to make the team as a non-roster invitee, but he now won't be ready for Opening Day.