Allen Robinson has never been one to wear his emotions on his sleeve, rather taking a more quiet approach and letting his body of work do the talking. But for Robinson, the Twittersphere is another story. Robinson’s voice is usually the loudest when it comes to matters regarding his alma mater — as evidenced during Penn State’s opening weekend loss to Temple.

Earlier, NFL draft insider Tony Pauline voiced his opinion on tight end and “Supa Six” member Kyle Carter.

Kyle Carter/TE/Penn State looks great. Too bad he doesn’t translate his practice ability into game production.

— Tony Pauline (@TonyPauline) January 18, 2016

Carter is ranked the No. 15 tight end by CBS Sports for the 2016 Draft, and while it’s clear Pauline thinks Carter can play, he acknowledged his lack of on-field production (Carter finished his career with 84 catches for 963 yards and four touchdowns). That didn’t sit too well with Mr. Robinson.

What ensued was Robinson and Pauline engaging in a somewhat testy twitter argument, going back and forth on a number of different points. It’s clear that Robinson, while slightly biased given his relationship with Carter, has the most insight regarding Carter’s abilities. Robinson subtly threw some shade James Franklin’s way by stating “not everybody was put in a position to be successful,” which isn’t too far from the truth considering how rapidly Carter’s opportunities diminished as the season progressed, despite question marks surrounding the team’s tight ends. Robinson knows Carter better than anybody, so naturally he’ll defend his teammate against draft experts.

Regardless of who’s right and who’s wrong, a friendly #DraftTwitter debate is always pleasing to the senses, especially when one of the greatest wide receivers to play at Penn State joins in on the conversation.

Let this be a warning for everyone; watch what you say about Robinson’s former teammates, and be prepared to deal with the consequences if the line is crossed.