Roy Hibbert, Robin Lopez

Indiana Pacers center Roy Hibbert, left, pulls in a rebound against Portland Trail Blazers center Robin Lopez during the first half of an NBA basketball game in Portland, Ore., Thursday, Dec. 4, 2014. (AP Photo/Don Ryan)

(Don Ryan)

The NBA issued a warning to Indiana center Roy Hibbert for violating the league's anti-flopping rule during the fourth quarter of the Trail Blazers game against the Pacers.

Hibbert's flop could have caused injury to Blazers guard Wesley Matthews, whose ankle ended up underneath the 7-foot, 280-pound center.

See the full video on the NBA's website.