San Francisco 49ers coach Jim Harbaugh backed up the denial of team owner Jed York about his near-made reported trade to Cleveland for a package of draft picks in a text to ESPN's Ed Werder.Harbaugh wrote this to Werder: "I echo Jed York's comment ... 'isn't true.' I know nothing about a trade with the Cleveland Browns and us, involving me."Friday, York tweeted this: Report isn't true.ESPN's Chris Mortensen confirmed the Pro Football Talk that the Browns' pursuit reached a serious point.