The manner in which Pitt left guard Keith Gouveia went down with a right leg injury during the third quarter of Saturday’s 34-27 loss to Louisville appeared serious, as he was quickly fitted with a temporary cast and carted off the field. On Monday, coach Pat Narduzzi revealed that Gouveia suffered a season-ending injury. Super kid, tough dude and it’s obviously a tough loss. Just like (losing) any one of your starters, it’s a tough loss. “Carretta’s played center, he’s played guard and I just think he’s our best guy,” Narduzzi said.