The helmet, manufactured by Vicis, reduces the severity of helmet-to-ground impacts, which league data says account for approximately half of the quarterback concussions.
The experienced Aztecs, in their sixth season under coach Brian Dutcher, will play the surprising East Region champion, ninth-seeded Florida Atlantic, on Saturday in Houston for a spot in the national title game.
The Minnesota Vikings have ramped up their run blocking by agreeing to terms with former Baltimore tight end Josh Oliver on a three-year, $21 million contract.
Twins manager Rocco Baldelli said the PitchCom device catcher Tony Wolters was using was loud enough for Tampa Bay Rays hitters to hear every pitch that was called.