Covey signed a one-year, major-league contract with the Mets on Thursday.
The Phillies activated Covey from the 60-day injured list and outrighted him (shoulder) to Triple-A Lehigh Valley on Tuesday, Tim Kelly of Phillies Nation reports.
The Phillies transferred Covey (shoulder) to the 60-day injured list Saturday.
Covey (shoulder) was cleared to resume throwing bullpen sessions at extended spring training in Florida over the weekend, MLB.com reports.
Philadelphia placed Covey on the 15-day injured list Thursday with a right shoulder strain.
Covey (shoulder) will begin this season on the injured list, Todd Zolecki of MLB.com reports.
Covey reported tightness in his right shoulder Saturday, Corey Seidman of NBC Sports Philadelphia reports.
The Phillies placed Covey on the 15-day injured list Saturday with lower back pain.
Covey dropped to 1-2 after giving up two runs on two hits and one walk while striking out two in 1.1 innings of relief in Monday's 9-8 loss to the Diamondbacks.
Covey will start Sunday against Atlanta, Matt Gelb of The Athletic reports.