EJ Manuel has said that he is not used to being part of a losing team.
The Buffalo Bills narrowly lost their first game of the 2013 NFL season to the New England Patriots.
The quarterback, who was a first-round Draft pick earlier this year, told reporters: "Well for me, this is my first year here so I'm not use to losing. As far as what you said, I guess the organisational, people used to losing. In my attitude I think winning is an attitude.
"I do think we should have closed that game out but we didn't. We didn't make the plays to close it out and New England won it.
"Moving forward you have to have a really good attitude, moving forward if you lose that one week that does not mean you're going lose the second week."
The Bills play the Carolina Panthers on Sunday.
