It was previously reported that there was massive heat on Sin Cara Monday night after hurting his hand during his match with Alberto Del Rio. This was because many stars have been working through injuries and that the finger dislocation was not looked at as a serious enough injury to stop the match.
The reason why Del Rio seemed upset Monday night after the injury took place was because he was legitimately angry that Cara could not continue and finish their match. This led to Del Rio continuing to attack Cara after the match and quietly telling him to "stop being a p*ssy."
The two have had issues in the past.