Massey (back) will begin a rehab assignment Tuesday at Triple-A Omaha.

EDGE Analysis

On the shelf with a low back ligament sprain, Massey received an injection May 31 and appears to have responded favorably. He was cleared to resume baseball activities early last week and has checked out fine after steadily increasing the intensity of his hitting and running over the last several days. The Royals haven't determined how long Massey's rehab assignment will last, but he may only need two or three games with Omaha to get his timing back at the plate before potentially making his return from the 10-day injured list as soon as this weekend.

Massey (back) took swings and played catch Monday, Anne Rogers of MLB.com reports.

EDGE Analysis

Massey received multiple injections after being examined by a back specialist in late May and is finally ready to ramp things back up. There's no guarantee his recurring back issues won't flare up again, but for now Massey looks to be trending in the right direction.

Massey (back) visited a specialist Friday and received multiple injections, Anne Rogers of MLB.com reports.

EDGE Analysis

Manager Matt Quatraro said the Royals will wait to see how Massey's back responds to the treatment before determining when he will head to the minors for a rehab assignment. For now, the 26-year-old infielder remains without a clear return timetable, though he isn't eligible for activation until Tuesday.

The Royals placed Massey on the 10-day injured list Sunday with a low back ligament sprain.

EDGE Analysis

The transaction is retroactive to Saturday, so he'll be eligible to rejoin the 26-man active roster beginning June 4. Kansas City called up infielder Nick Loftin from Triple-A Omaha in a corresponding move, but Adam Frazier will pick up his second straight start at the keystone Sunday and should serve as the Royals' primary second baseman while Massey is on the mend from the injury.

Massey (back) is not in the starting lineup for Saturday's game against the Rays.

EDGE Analysis

Massey exited in the sixth inning of Friday's 8-1 over win over Tampa Bay due to lower-back tightness. Before the injury, he went 2-for-3 with a three-run home run in the top of the fifth inning. While the Royals evaluate Massey's back injury, Adam Frazier will start at second base Saturday and bat sixth against Rays right-hander Aaron Civale.

Massey was removed from Friday's game against the Rays due to lower-back tightness, Joel Goldberg of Bally Sports Kansas City reports.

EDGE Analysis

The severity of Massey's injury is unclear, but the Royals will take a closer look at him and should provide an update on his status following Friday's game. The 26-year-old infielder had gone 2-for-3 with a three-run home run prior to being removed.

Massey is out of the lineup for Wednesday's game against the Tigers.

EDGE Analysis

With ace southpaw Tarik Skubal on the hill for the Tigers, the Royals will stock up on extra right-handed bats in the series finale. The lefty-hitting Massey will thus cede his spot at the keystone to the right-handed-hitting Garrett Hampson.

Massey went 3-for-4 with a home run, a double and two runs scored in Monday's win over Detroit.

EDGE Analysis

Massey set the tone for the 8-3 win with a solo shot in the second inning. He later doubled and scored in the sixth. Massey has gone 8-for-14 (.571) with four extra-base hits over his last four games. The recent hot streak has boosted his slash line to .284/.300/.505 with 11 extra-base hits and 19 RBI through 27 games.

Massey went 3-for-4 with a two-run homer in Friday's win over Oakland.

EDGE Analysis

Massey cracked his fourth home run of the season in sixth inning, hitting it 368 feet to right field. The 26-year-old has enjoyed a hot start to May, hitting .288 (15-for-52) with three homers, five runs scored and 11 RBI this month. Overall, Massey is now slashing .259/.261/.447 over 90 plate appearances while being locked into the starting second base job in Kansas City.

Massey is not in Saturday's lineup against the Angels.

EDGE Analysis

He'll sit against lefty Tyler Anderson, with Garrett Hampson getting the nod at the keystone. Massey is hitting .273 with two home runs and two doubles in nine games this month.