A recent breakthrough has found the reason why WWE superstar Rey Mysterio has been having problems with his knees, sources have confirmed.
According to the medical team, Rey Mysterio's ego has grown to the point where it actually adds weight to Mysterio himself. This added weight to Mysterio's tiny body has had a negative effect on his knees, therefore making him slower in the ring.
Unfortunately there is nothing to do about this problem. Medical experts have confirmed that there is no stopping Mysterio's ego from growing. According to the experts, his ego will just continue to grow until he is eventfully crushed under it's weight.
"It's really a sad situation." One of the doctors said. "His ego gets bigger and bigger each second, and there's nothing we can do to slow it down, let alone stop it."
Doctors have given Mysterio about 2 more years before his ego stops him from wrestling, and 10 more until it crushes him completely.