Cleveland Cavaliers star Donovan Mitchell delivered a defiant claim following his team's loss to the Boston Celtics.

Donovan Mitchell brought his A-game off the court before the Cleveland Cavaliers faced the Boston Celtics on Tuesday. While NBA fans talk about the exciting matchup between the top two teams in the Eastern Conference,

This was bad news for Kristaps Porziņģis. Donovan Mitchell put Porziņģis on a poster with a power slam over the 7-2 center early Tuesday to ignite the Cleveland home crowd in a matchup against the Boston Celtics.