Boston Celtics combo guard Marcus Smart suffered a torn left oblique on Sunday against the Orlando Magic and could reportedly miss the first two rounds of the playoffs, according to Adrian Wojnarowski of ESPN.

The Celtics will face the Indiana Pacers in the first round. The playoffs start this Saturday.

This is a very tough blow for the Celtics. Marcus Smart is the team's heart and soul and unarguably Boston's best perimeter defender.

In 80 games this season, Smart averaged 8.9 points, 2.9 rebounds and 4.0 assists per contest. The 25-year-old shot 42.2 percent from the field, 36.4 percent from beyond the arc and 80.6 percent from the free-throw line.

The Celtics are the fourth seed in the East. They will have home court advantage against the Pacers in the first round.

You have to watch the game to see what kind of impact Smart has for the Celtics. He's always the first one to dive onto the floor and stink the opponents best wing player. Boston is going to have a tough time replacing Smart.

The timing of Smart's injury is the worst part about this. He suffered the injury with the playoffs right around the corner. The rugged defender is one of the toughest guys in the league, so it wouldn't surprise anyone to see Smart try and come back sooner.