Los Angeles also reportedly had interest in trading for the top overall pick.
The No. 1 overall pick in the 2017 NBA Draft was almost traded to Los Angeles.
Boston is trading the top pick to Philadelphia for this year's No. 3 overall pick and either the Lakers' 2018 first-round pick or Sacramento's 2019 first-round pick (the Sixers have the rights to both of those picks).
But Philly wasn't the only team interested in trading for the Celtics' top pick.
The Lakers reportedly had significant interest in it so they could get Markelle Fultz, but were out-asset'ed by Philadelphia.
The 2017 NBA Draft is Thursday night.