NASHVILLE, Tenn. -- A mid-week hamstring injury will leave Rishard Matthews, the Tennessee Titans' most consistent wide receiver, as a game-time decision for Sunday's game against the Indianapolis Colts.

Titans coach Mike Mularkey said he wanted to "give him a day to rest his hamstring," and he expects they'll know more about Matthews' status on Saturday.

Matthews said he injured his hamstring while running during Thursday's practice but that he expects to play Sunday.

In an offensive looking for consistency and big plays, Matthews has provided both this season. He had a big 75-yard touchdown to start the second half of the Steelers game. He leads the Titans with 626 receiving yards. He also is fifth in the NFL in yards per reception (14.8) over the last two seasons.

If Matthews can't go Sunday, expect bigger roles for veteran Eric Decker, who would likely start opposite Corey Davis, and rookie Taywan Taylor.

The Titans have the option of activating Harry Douglas off injured reserve this weekend in time for Sunday's game if they choose. Douglas, who missed the first 10 games, has practiced all week.