By Matt Hladik Dallas Cowboys wide receiver Michael Gallup is back in the lineup for the first time since tearing his ACL late last season. Gallup has already made his presence felt in the first half against Washington. He just hauled in a nine-yard touchdown pass from Cooper Rush to put Dallas up 12-7 late in the second quarter. Rush rolled right and found Gallup coming across the back of the end zone for six. Whether it is Rush or Dak Prescott at quarterback for America’s Team, having Gallup makes the Dallas offense a lot more dynamic. Not surprisingly, Cowboys fans are welcoming the former …