As the Celtics head into a pivotal summer, new details about Jaylen Brown’s injury reveal how much they were battling behind the scenes.

How bad is Boston Celtics star Jaylen Brown's torn meniscus?Following Boston's exit from the playoffs, reports surfaced that Brown had been playing for some time with a partially torn meniscus.On Monday,

But in the second round against the New York Knicks, they lost the first two games at home after blowing double-digit second-half leads in both games. They ended up losing in five games, and they also lost star forward Jayson Tatum in Game 4 to a ruptured Achilles that will threaten his availability for next season.