US energy drinks company Who's Your Daddy (WYD) has signed an endorsement deal with heavyweight boxer Chris Arreola.

The deal, struck days before Arreola's 11 April fight against Jameel McCline in Las Vegas, will see him wear the company's brand logo on his shorts during fights.

The endorsement represents an "aggressive" move into the sport of boxing by an energy drink company, WYD said today (9 April).

Leigh Steinberg, Arreola's marketing agent, said the signing of Arreola has major significance in the industry. "The link between professional fighters and a premium sustained energy source makes perfect sense. It is easy to imagine the association of energy drinks and professional boxers becoming a trend in the sport of boxing."