Shaq denies Howard a roast battle: 'I only battle champions'

A Shaquille O'Neal versus Dwight Howard rap battle just isn't in the cards.

The new Washington Wizards center recently made an appearance on Nick Cannon's "Wild 'N Out," and his tenures with the Orlando Magic, Atlanta Hawks, and Houston Rockets were mocked by Charlie Clips and DC Young Fly during the Wildstyle final round.

Shaq took notice of the footage circulating on social media and posted it to his Instagram page. Howard responded soon after by challenging the Hall of Famer to a roast battle, but the Big Aristotle isn't interested.

That's because Howard has yet to win an NBA championship, and O'Neal apparently only battles those who've won rings.

Not allowing Shaq to get the last laugh, Howard posted a video of O'Neal flopping as Howard spun past him in the post to throw down an uncontested two-handed monster dunk during a Magic-Phoenix Suns game way back when.