Hayes signed an extension back in 2019-20 with the Philadelphia Flyers for 7 years at $7,142,857. He is signed until the end of the 2025-26 season and after that he becomes a UFA. According to Anthony Di Marco of The Fourth Period the Boston Bruins have picked up interest in Philadelphia Flyers forward Kevin Hayes.
The Boston Bruins currently only have $2,325,000 in cap space so the Flyers would have to retain at least 50% of Hayes contract and Boston would have to dump some cap, but this move could heavily improve the Bruins offensive juggernaut even more. Boston presently leads the NHL in goal differential with a +82 (183 GF 101 GA) and adding someone of the likes of Hayes would give them some extra depth scoring that will be important come playoffs.