The Big Show has his sights set on Shaquille O'Neal.

The WWE wrestler, who just turned 45 this week, took to social media to highlight his new physique in time for Wrestlemania in April. On Twitter, he showed off a photo of his six-pack:

 

In addition, Big Show posted a video on Instagram mid-workout, where he calls Shaq out:

 

@Shaq! Karaoke? Doughnuts? You better get serious. All roads lead to #WrestleMania. The only giant!

A video posted by The Big Show (@wwethebigshow) on

 

The seven foot tall "giant" has been teasing a face-off against Shaq as early as July of last year, where he challenged Shaq face-to-face on the red carpet of the 2016 Espy Awards. While WWE has not formally confirmed the fight for Wrestlemania 33, Big Show's constant taunting towards Shaq implies the duel is highly likely.

Meanwhile, Shaq is working on a six-pack of his own, though he seems more concerned about his Instagram audience than taking down Show.

Wrestlemania 33 is currently slated to air live from Orlando, Florida on April 2.