The Kemba Walker-to-Boston hype train is picking up serious speed.

The Celtics have "emerged as the frontrunner" to sign Walker once free agency begins June 30, ESPN's Adrian Wojnarowski reported Thursday morning.

Wojarowski added on ESPN's "Get Up" that the C's and Walker are "focused on each other" in free agency and added there's a "very strong possibility that Kemba Walker will replace Kyrie Irving" as Boston's point guard.

The Athletic's Shams Charania also reports Walker's contract talks with the Charlotte Hornets have reached a "stalemate" and cites the Dallas Mavericks and New York Knicks as Boston's top competitors for Walker.

Dallas Morning News reporter Brad Townsend also pegged Boston as a frontrunner to land the 29-year-old point guard Wednesday, as reports of Walker coming to the Celtics have gained impressive traction since The New York Times' Marc Stein first reported the C's as a "stealth suitor" for Walker on Tuesday.

Walker is expected to seek a maximum contract in free agency worth $32.7 million next season, a deal the Celtics could give the UConn product by renouncing their rights to nearly all of their free agents, including Irving, Al Horford, Marcus Morris and restricted free agent Terry Rozier.

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