New Jersey rock legend Jon Bon Jovi suffered a leg injury during his concert Friday night at East Rutherford's New Meadowlands arena.  The injury happened during the band's cover of the Dave Clark Five hit "Glad All Over".  Jon informed the crowd by saying "I just blew out a calf muscle", then adding as he leaned on a microphone stand for support "I got another leg.  I don't need this one".  He then finished the full set while hobbling across the stage, then came back out for an encore of "Livin' On A Prayer.  Jon limped off stage with the help of keyboard player David Bryan, who placed an arm around his shoulder for support.  The band issued a statement that they don't plan to cancel any tour dates because of the injury.