Most problems occur at the youth level, particularly at high schools in poorer areas where funding for the most efficient safety measures is not available. Doug Casa, professor of kinesiology at UConn and the lead researcher for the Korey Stringer Institute, fears receiving phone calls about a teenager who died of heatrelated problems during a summer football practice. And he gets one or more of those calls nearly every year..To stop the Patriotis offense, Ravens linebacker Ray Lewis (the only team member with a SuperBowl XXXV ring) must stop Brady from completing passes to Welker and Gronkowski across the middle. Safety Ed Reed's omnipresence is a key reason no team has more than one touchdown pass against the Ravens this season. And outside linebacker Terrell Suggs must move Brady off his in the pocket for Baltimore to have a chance..

Matthew Stafford: Once Calvin Johnson signed his sevenyear contract extension with the Detroit Lions in March averaging $16,207,143 per ye