NBA roundup: Kelly Olynyk sparks Heat in return to Boston

Kelly Olynyk scored a career-high 32 points in his return to Boston and the Miami Heat hung on Wednesday for a 90-89 victory over the Celtics.

Olynyk signed with Miami as a free agent during the offseason. His previous high was 30 points on Dec. 15, 2014.

Kyrie Irving paced the Celtics with 33...