Luke Joeckel out to prove he can still be left tackle of the future

The Jaguars have done everything to suggest to Luke Joeckel this offseason that he’s not their left tackle of the future. But the former No. 2 overall pick is determined to prove he can still be the left tackle of the present. Via Ryan O’Halloran of the Florida Times-Union, Joeckel said he’s fighting to keep the…