Michigan Wolverines footballjunior cornerback Will Johnson is the program’s all-time leader with 3 interceptions returned for touchdowns. His third was absolutely necessary in a tight, 27-24 win over USC Saturday at The Big House. USC had tested Johnson’s side of the field in the third quarter, so he was readying for his moment to make a big play. On 3rd and 3 from the USC 31-yard line, quarterback Miller Moss dropped back and threw toward slot receiver Zachariah Branch. Before the receiver even stopped his route at the sticks, Johnson had already started darting in between Branch and the quar…