What jersey number did Aaron Rodgers wear with the Packers?

Which college was Drew Brees playing for when he entered the NFL? What jersey number did Drew Brees wear with the Saints? What position did Aaron Rodgers primarily play? Which college was Aaron Rodgers playing for when he entered the NFL? What position did Patrick Mahomes primarily play? Which college was Patrick Mahomes playing for when he entered the NFL? What jersey number did Patrick Mahomes wear with the Chiefs? What position did Johnny Unitas primarily play?