Celtics' Marcus Smart on scuffle with 76ers' Joel Embiid: 'I could have cracked his head open, ... Both guys play with extreme intensity, and both also happen to have a flair for the dramatic.

Patrick Mahomes' helmet cracked during the third quarter of Saturday's NFL Wild Card game between the Kansas City Chiefs and Miami Dolphins. Mahomes scrambled on second and seven and picked up 13 ...