Jeremy Lin returning to MSG for first time as fan since Knicks free-agency split

Jeremy LinLinsanity is returning to The Garden for Games 3 and 4 of the NBA Finals.Former Knicks guard Jeremy Lin, who set the city ablaze in Feb. 2012 as an undrafted rookie out of Harvard, has only been back at Madison Square Garden as an opposing player after his unceremonious departure from the team – until now.Lin told The Post in an exclusive interview that he has accepted an invitation from the team to return as a spectator for Games 3 and 4.Jeremy Lin will be returning to MSG as a