The New England Patriots reportedly opened a spot on their 53-man roster on the same day quarterback Tom Brady and defensive end Rob Ninkovich returned from four-game suspensions.

The Patriots released veteran tight end Clay Harbor, a source told ESPN’s Adam Caplan. Harbor played just 25 offensive snaps and 39 special teams snaps in four games with the Patriots. He didn’t record a reception.

It’s unclear whether the Patriots made the move to activate Brady or Ninkovich or whether another corresponding move is coming. If the Patriots request and are granted roster exemptions for Brady and Ninkovich, they won’t need to free up roster spots until Saturday.

The Patriots could add another defensive tackle or running back. Defensive tackle Vincent Valentine (back) and running back Brandon Bolden (knee) suffered injuries Sunday in the Patriots’ 16-0 loss to the Buffalo Bills.

Releasing Harbor also could mean the Patriots feel that tight end Rob Gronkowski is back to full health.

Thumbnail photo via Reinhold Matay/USA TODAY Sports Images

Thumbnail photo via Oct 18, 2015; Jacksonville, FL, USA; Jacksonville Jaguars tight end Clay Harbor (86) runs during the second half of a football game against the Houston Texans at EverBank Field. Mandatory Credit: Reinhold Matay-USA TODAY Sports