Today’s health and safety news includes controversies on the field:

* Larry Fitzgerald’s head injury was a hot topic on Tuesday with some opinions  questioning his return to the field so quickly, according to ProFootballTalk.com. The Bleacher Report criticized the NFL because the Arizona Cardinals did not pull the wide receiver from the game.

Even if Fitzgerald did not suffer a concussion, his situation caused the national NFL fanbase to refocus on the issue at hand. Many other players with less name recognition — and fewer zeroes in their contracts – still have similar predicaments that must be addressed. If he did in fact suffer a concussion, as at least several among us suspect, the NFL has to do something punitive to deter teams from trotting out their star players following such a traumatic physiological event.

* Arizona quarterback Matt Scott denied Monday to the AZDesertSwarm blog that he had a concussion Saturday against USC despite sideline tests and visible symptoms — such as vomiting twice — showing otherwise.

* InsideHigherEd.com interviewed Arizona athletic director Greg Byrne, who insisted Scott did not have a concussion.

After the touchdown, medical employees “continued to observe Matt,” and as a “precaution,” opted to withhold him from the rest of the game, Byrne said. Tests of Scott on Sunday and Monday offered no evidence of a concussion. As for the vomiting that game announcers understandably viewed as signs that Scott had suffered a concussion, Byrne said: “We had knowledge of Matt being nauseous throughout the day.” Byrne said that Scott frequently suffers from nausea when he exerts himself intensely.

* The LA Daily News talked to UCLA quarterback Brett Hundley, who says he would have done the same thing as Matt Scott and tried to return to the game.

* The Orange County Register wrote that Scott’s possible concussion issue brings into question some policies the Pac-12 has on concussions.

* The Daily Tar Heel published an Op-Ed that urged North Carolina football players to put safety first and stay out of the game if they’re injured.

* In NFL updates, New Orleans Saints defensive back Roman Harper may have suffered a  a concussion in the third quarter of the game against the Denver Broncos.

– Bill Bradley, contributing editor