Quarterback David Garrard was to have an MRI exam on his injured left ankle on Tuesday and coach Jack Del Rio said he will provide information to the media on Wednesday as to how long Garrard might be out of action.
Garrard sprained his ankle with 12:10 to play in the second quarter of Monday night's 29-7 loss to the Indianapolis Colts. Garrard was running out of the pocket to his right when defensive tackle Ed Johnson hit Garrard knee-high and rolled onto the quarterback's ankle.
Quinn Gray replaced Garrard for the next two plays but Garrard returned to the game a series later. He threw two more passes before halftime but it was announced then that he would not return to action in the second half.
"It doesn't look like an average roll of the ankle. It's a pretty good sprain," Del Rio told reporters following the game. "It's not broken," he added.
Asked if Garrard would miss the Jaguars' next game, in Tampa this Sunday, Del Rio said: "I think in all likelihood that'll be the case."
Gray will likely be the Jaguars' starting quarterback in Tampa. Rookie Lester Ricard may be moved up from the practice squad to the active roster and a veteran quarterback is likely to be signed. The list of available veteran quarterbacks includes Drew Bledsoe and Aaron Brooks, both of whom were starters last season.
Gray struggled through what was the second significant regular-season playing time of his career, finishing the game having completed just nine of 24 passes for 56 yards and two interceptions. Gray predicted that a week of practice time with the first team offense would produce a different result.
Del Rio will meet with reporters shortly after noon on Wednesday.
