The past 72 hours since the Boston Celtics were eliminated from the playoffs have been a vortex of emotions, conversations and lack of sleep for Brad Stevens.

Instead, the New York Knicks and Indiana Pacers decided to play spoilers and find themselves with an opportunity to add to a longtime rivalry.

The Knicks came into the playoffs as the No. 3 seed in the East and did a number on the Detroit Pistons in the first round, and sent the second-seeded Boston Celtics out of the playoffs in the second...