Olympic bronze medal winner David Price is taking his upcoming bout so seriously, that he views his contest with David Allen as a world title fight.

The two popular heavyweights will collide on the undercard of Dillian Whyte-Oscar Rivas at The O2 in London on July 20.

Price (24-6, 19 KOs) will be back for the first time since his March disqualification win over Kash Ali, who made headlines all over the world for biting Price during the contest.

Allen (17-4-2, 14 KOs) is currently riding a very big run and returns on the back of the biggest win of his career, a third round knockout of former world champion Lucas Browne in April.

A loss would surely end the career of Price, who was stopped in all six of his defeats.

"This is massive, this is probably the biggest fight of my career," Price told Sky Sports.

"But it's not the first time I've been in a crossroads fight, so to speak, because as soon as you've lost a couple of fights, every fight is a so-called crossroads fight. But this one to me is so big because of what is potentially on the other side that it's like my world title fight.

"This is coming for me at the right time this fight 100 percent, and I'm going to show on the night, put a performance in and make people sit up and take notice of me. He's had a bit of up and down himself. He's had some low points himself, recently he's had more of his high points so he's got a bit of momentum going forward. I think he's done well, so I'm looking forward to the challenge but it's a fight I'm expecting to win."