Indianapolis Colts starting cornerback Greg Toler, who has missed the last two weeks with a neck injury, is unlikely to play in Sunday's season-opener against the Buffalo Bills, according to ESPN's Mike Wells.

Per Wells, Colts head coach Chuck Pagano said Toler is still "week-to-week" with the injury, which occurred in the Aug. 22 preseason game against the Chicago Bears.

If Toler cannot play, Darius Butler will likely start opposite Vontae Davis at corner.

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Last season, Toler made 57 tackles and intercepted two passes in 15 games for the Colts.

In other injury news, running back Vick Ballard, who made the team despite suffering three hamstring injuries in the preseason, didn't practice on Monday, while guard Hugh Thornton, who had been out with knee injury returned to the field.

(h/t ESPN)