As Bill Belichick noted during Friday's press conference, some players have "other commitments" that will interfere with their participation at the beginning of the offseason program.
With training camp set to begin next month, the Patriots should get their answer concerning Gronkowski at some point over the next few weeks.
Gronk is not expected to attend the start of the Patriots' offseason activities, according to ESPN and the Herald.
Schefter adds Gronkowski is still considering whether to play in the upcoming National Football League season, but has had "good communication" with New England.
Brady is reportedly in Qatar to do charity work for Best Buddies.
Although Gronkowski has yet to commit to returning, NFL Network's Ian Rapoport reported in February that he was expected to play in 2018.
Gronkowski turned in yet another strong year with the Patriots in 2017. He was also a force in the playoffs, catching three scores in three games.
Per the report, Gronkowski is thought to still be mulling his playing status for the upcoming season, but on that note Schefter relays that the tight end has had "good communication" with the Patriots on that front.