Sports giant Nike is currently in contract negotiations with UFC heavyweight champion Junior Dos Santos to sponsor the champion in his upcoming blockbuster rematch with former UFC heavyweight champion Cain Velasquez at UFC 155 on Dec. 29.

Dos Santos contract with his main sponsor, Pretorian, has expired, and after negotiations, both parties mutually agreed to move forward separately.

With an opportunity to sponsor one of the UFC champions, Nike quickly contacted the popular heavyweight and brought him in to headquarters for negotiations.

If both sides come to an agreement, Dos Santos will become the third UFC fighter to be sponsored by popular shoe and apparel company, joining the ranks of UFC champions Jon Jones and middleweight champion Anderson Silva.

Dos Santos has been in Los Angeles, California where he is currently training for his upcoming title defense, and has been spotted wearing only Nike clothing.