In less than one month, Jon Jones and Daniel Cormier will have their highly anticipated rematch for the UFC light heavyweight championship in the main event of UFC 200.

Ahead of the fight, Jon Jones revealed that he has lost interest in moving up to heavyweight in the future, and would rather stay at light heavyweight and fight the best of the best in that division.

Now, Daniel Cormier has taken to Twitter to make a bold claim regarding Jones and former heavyweight champion Cain Velasquez:

Today was tough because I got to spar the greatest fighter I've ever been locked in a cage with. This is no joke @officialcainvelasquez is by far the best guy I've ever gone with. Having him back has been a blessing. This fight will be different. Head in the sand and let's get ready to go! #13days #andstill#newfight #newresult

A photo posted by Daniel "DC" Cormier (@dc_mma) on Jun 27, 2016 at 3:48pm PDT

This drew much attention from fans, who questioned whether or not DC was a bit biased:

Cain is better! 100% only I know I've gone with both https://t.co/vf6o3Q1GB5

— Daniel Cormier (@dc_mma) June 27, 2016

No chance. Cain wins 10 out of 10 against him https://t.co/QbMXUn79Tx

— Daniel Cormier (@dc_mma) June 27, 2016

Being 100 percent genuine. I've gone with both and I'm giving honest assessment. https://t.co/RHkOus6YMx

— Daniel Cormier (@dc_mma) June 27, 2016

Cain. https://t.co/jDSFNzDwGb

— Daniel Cormier (@dc_mma) June 27, 2016