Several fans noticed a much leaner Brock Lesnar on this week's RAW, which may be due to Lesnar's application in the United States Anti-Doping Agency testing pool.

If he provides clean samples, Lesnar will be able to return to the UFC in January, after testing positive in 2016 after his victory over Mark Hunt at UFC 200.

The Universal Champion is expected to fight UFC Heavyweight Champion Daniel Cormier, following an altercation between the two at UFC 226. 

Appearing on RAW this week, several fans commented on Brock's physique, which seems to be smaller than the usual Beast Incarnate.

Something is different about Brock Lesnar. Can’t quite put my finger on it *cough USADA cough* #WWE #RAW

, Daniel Yanofsky (@DanYanofsky) July 31, 2018

@lthomasnews Lesnar on Monday Night RAW right now....looks slimmer and a bit soft....I miss USADA-less Brock.

, Steve (@SharkAttack316) July 31, 2018

USADA tested Lesnar is an edgy and still aggressive Lesnar #RAWMiami #RAW #WWE

, David Lowther (@lowroda) July 31, 2018

Was watching #WWERAW I have full faith in Brock Lesnar passing USADA, he looks a lot smaller.

, will tuesca (@willtuesca) July 31, 2018