Royals manager Matt Quatraro said Monday that Massey (back) is on track to go on a rehab assignment this week, Anne Rogers of MLB.com reports.

EDGE Analysis

Massey was placed on the 10-day injured list Thursday after experiencing lower-back tightness at the tail end of spring training. The 26-year-old infielder has since resumed playing in sim games at extended spring training in Arizona, and he appears to be progressing well enough to test himself in an uncontrolled setting this week.