Ric Butcher of Bleacher Report confirmed the interest.
“While the news since last summer has been largely about stars not interested in being LeBron [James]’s sidekick — [Paul] George’s decision to re-sign with the Thunder, Jimmy Butler not having the Lakers on his reported preferred list and Kawhi Leonard reportedly favoring the Clippers — a source close to the Celtics confirmed that Kyrie Irving is genuinely interested in reuniting with his former Cavaliers teammate,” Bucher said.
— Bleacher Report (@BleacherReport) January 29, 2019
Irving has previously stated that he planned to re-sign with the Celtics this Summer, but with these rumors circulating, who knows.
Rumors on Davis have surfaced saying the Celtics may also be a possible lansing spot for the star player, but it appears he does not see Boston as “a top target.”