Packers first OTA practice touches off summer offensive line battle

It’s just one practice — and not even a real one. Not a high-stakes playoff tune-up. Not a key regular season session before a big divisional game. Not even a training camp battle. It was just one practice during the first of the Packers’ Organized Team Activities.

But it’s hard not to think the starting gun has sounded for one of the most intense and unusual roster battles for this year’s Packers team.

The headline of yesterday’s practice was Elgton Jenkins’ absence. He’s been one of the Packers’ best offensive linemen for half a decade and has been indisputably their most versatile, but miffed about his contract, he’s nowhere to be seen.

That he’d forego half a million dollars to make a…