The Pacers released a statement on Evans after the news broke, promising to "reach out" to the 11-year pro and offer him support.
Former Pacers and Magic coach and team "are expected to talk again" on Los Angeles' open head coaching position.
"We'll go after 'em," Pacers GM Kevin Pritchard said. "We'll make the pitches. We're not afraid. We're willing to think big.”
The Golden State Warriors and Portland Trail Blazers hold 3-1 leads over the Los Angeles Clippers and Oklahoma City Thunder respectively.
Boston will likely play the Bucks, who are one game away from sweeping the Pistons, in the second round.
The Boston Celtics' relentless approach to Game 4 pleased head coach Brad Stevens as they beat the Indiana Pacers to reach the semi-finals.
A few notable Pacers free agents include Bojan Bogdanovic, Darren Collison, Tyreke Evans, Cory Joseph, Wesley Matthews and Thaddeus Young.
Hayward came off the bench and tallied a team-high 20 points in Boston’s 110-106 win over the Pacers.
A 110-106 win over the Indiana Pacers in Game 4 gave the Boston Celtics their first playoff sweep since 2011.
A 110-106 win over Indiana in Game 4 gave Boston its first playoff sweep since 2011.