Brook Lopez — who just signed a $61 million, four-year contract with the Brooklyn Nets — got an authentic welcome to the borough yesterday while visiting the under-construction Barclays Center. As Lopez crossed Flatbush Avenue, a car slowed and its driver yelled through a rolled-down window, “Yo
! You got $60 million!” Lopez smiled and headed to Bergen Street Comics, where the NBA star and superhero junkie dropped $75 after an in-depth conversation about “The Rocketeer.” “He was pretty knowledgeable,” an impressed worker at the shop said. Comics in hand, Lopez headed to hipster hot-dog joint Bark with his brother Alex and Nets execs. To celebrate his deal, he’s headed to Italy with family.