Visit my website homepage, TomShanahan.Report PHOTO: Antonio Gates Jr. scored his first career touchdown September 9 against Richmond at Spartan Stadium. By TOM SHANAHAN Antonio Gates Sr. prefers climbing Spartan Stadium’s steps to its upper reaches when attending Michigan State football games. The vantage point allows one of the NFL’s greatest tight ends to anonymously watch his namesake, Antonio Gates Jr. “I get the game tickets on my own with friends, and I don’t leave my name at…