Linebacker’s (NZ) (Super Seth) light spring holds no fears for connections ahead of the three-year-old’s return. John O’Shea isn’t anticipating Linebacker being ring rusty when he resumes for the first time as a gelding in the Eskimo Prince Stakes at Randwick. The Group 1 placegetter was only seen twice in the spring, most recently when sixth in the Golden Rose after a coltish pre-race display that resulted in him performing below expectations. Immediately spelled and gelded, Linebacker will kick off his latest campaign in Saturday’s three-year-old feature having only raced twice in the past 10 months. However,…