Rio Giancarlo/Getty Images Seahawks head coach Mike Macdonald has two new players to work with as training camp gets underway. The Seattle Seahawks kicked off the season in disappointing fashion. It was a sloppy game for the Seahawks that saw them fall to the San Francisco 49ers 17-13. In the game that was winnable for the Seahawks, their own mistakes cost them.  A late fumble by quarterback Sam Darnold in the red zone sealed the game for the Seahawks. However, part of what put the Seahawks in