With brawls and injuries, risks of joint practices outweigh the rewardsGiants start joint practices with Lions on Tuesday8/13/2018, 9:00 PMAug 1, 2018; East Rutherford, NJ, USA; New York Giants running back Saquon Barkley (26) rushes during training camp in East Rutherford. Mandatory Credit: Danielle Parhizkaran/NorthJersey.com via USA TODAY NETWORK / Danielle Parhizkaran