Colts Injury Report: Andrew Luck and Anthony Castonzo DNP

LONDON, ENGLAND - OCTOBER 02: Anthony Castonzo of Indianapolis looks on during the NFL International Series match between Indianapolis Colts and Jacksonville Jaguars at Wembley Stadium on October 2, 2016 in London, England. (Photo by Ben Hoskins/Getty Images)
LONDON, ENGLAND - OCTOBER 02: Anthony Castonzo of Indianapolis looks on during the NFL International Series match between Indianapolis Colts and Jacksonville Jaguars at Wembley Stadium on October 2, 2016 in London, England. (Photo by Ben Hoskins/Getty Images) /
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The Colts’ injury report was littered with important players on Wednesday as the team prepares for a divisional matchup against the Houston Texans.

Head coach Chuck Pagano announced Andrew Luck would not practice at all this week as mystery continues to surround his latest setback. The Colts worked out four quarterbacks after that announcement as they may be looking to add another QB to the roster and deactivate Luck for the rest of the season.

Left tackle Anthony Castonzo was unable to practice on Wednesday with a knee injury. If he is unable to go this week, Jacoby Brissett could be in big trouble against a Texans defense that still has a lot of talent along the defensive line.

Adam Vinatieri was also unable to practice as he was listed with a back injury on Wednesday’s injury report. This could be a precautionary measure for the 44-year-old kicker, but he would be sorely missed if he had to miss a game.

Punter Rigoberto Sanchez doubled as a placekicker in college and could possibly fill in for an injured Vinatieri.

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Outside linebacker John Simon continues to be sidelined with a neck stinger after he was on a tear to begin his first season in Indianapolis. Pagano said he’s week to week with this particular injury.

Cornerback Rashaan Melvin returned to a limited practice as he works his way through the concussion protocol.

Jabaal Sheard was limited with a quad injury on Wednesday, and rookie cornerback Quincy Wilson was out with a knee injury.