Kyrie Irving spoke about how valuable Marcus Smart is for the Boston Celtics.

"He's a true necessity," said Irving. "He does the little things. Are there really little things in the grand scheme of things for us? 

"We understand how importantly he is offensively and defensively for us."

Smart is averaging 9.7 points, 4.6 rebounds and 5.4 assists in 29.7 minutes per game this season for the Celtics.