Buffalo Bills head coach Doug Marrone has described this week as the "toughest stretch of camp".

The Bills are preparing for their second game of the pre-season, having beaten the Indianapolis Colts at the weekend.

Marrone told reporters: "I am pleased with the last two days of practice that we've had. The players have come in, we played a game on Sunday and we've had two really good days of work. You can see it a little bit with the soreness.

"I don't think there's anything major to report. Just a lot of soreness and trying to see who we can get back for this game on Friday. One of the good things is that we practised [yesterday morning]. Now, there's a large recovery time coming on since we don't practice until [tonight].

"My message to the players was to make sure to stay of your feet, make sure we're getting our treatments, knowing that this is the toughest stretch of camp."

The Bills face the Minnesota Vikings on Friday.