Barry Sanders knows Giants' Saquon Barkley is ready for 'even more difficult' sophomore seasonSanders sees nothing but greatness for Barkley after an impressive rookie campaign8/27/2019, 9:35 PMAug 16, 2019; East Rutherford, NJ, USA; New York Giants running back Saquon Barkley (26) during warm up before NFL game against the Chicago Bears at MetLife Stadium. Mandatory Credit: Noah K. Murray-USA TODAY Sports / Noah K. Murray