Indianapolis Colts quarterback Andrew Luck is dealing with a partially separated right (throwing) shoulder, according to Indy Sports Central.
The partial separation is known as a "subluxed" shoulder in medical terms. Reporter Chris Hagan says the Colts "are concerned about Luck's labrum," and Luck has sent his MRI to at least three different doctors to view the injury. "The biggest concerns about Luck at the moment are pain and arm strength," per the report, and Luck's status for Thursday night's game against the Texans "is in doubt."
While this situation is very much fluid, it currently looks like Matt Hasselbeck may have to make another start. Hasselbeck filled in about as well as you could expect in Luck's stead. He finished with 5.19 Passing Net Expected Points (NEP) over his 47 attempts in Week 4. Thursday, they're paired with the Houston Texans, who entered Week 4 ranked 11th in Adjusted Defensive Passing NEP per play.
Source: Rotoworld.com