By Daniel Chavkin According to Aikman, Fox didn’t try too hard to keep him from ESPN. View the original article to see embedded media. Troy Aikman will be ESPN’s main analyst on “Monday Night Football” this year, but he didn’t expect that to happen. In an interview with 1310 The Ticket in Dallas, Aikman admitted Fox wasn’t aggressive in keeping him when he started negotiating with ESPN. “When negotiations couldn’t reach what I felt was fair value, I was able to negotiate an opt-out after six months which allowed me to be a free agent,” Aikman said, via Greg Joyce of The New York Post “Then Fox…