Danny Luetzen learns how to throw a spiral football from current UND running backs coach and former quarterback Danny Freund. To see all "ProTips" in this series, go to UNDSports.TV

Former North Dakota QB Danny Freund went 16-6 as a two-year starter for the Fighting Sioux, finishing his career as the program's most accurate passer. His 68.9 career completion percentage still tops the charts and he also owns the top single-season completion mark of 71.9 that he set as a senior in 2008. He threw for 5,239 yards and 47 touchdowns, which both rank third on the all-time career lists at UND.