Miami Dolphins coach Adam Gase described quarterback Ryan Tannehill's worsening injury last week as unusual Matt Haack Jersey , and now it has drawn the interest of the NFL.The league is looking into how the Dolphins reported Tannehill's shoulder problem on injury reports last week, two people with knowledge of the situation said Wednesday. The people confirmed the NFL's interest in the matter to The Associated Press on condition of anonymity because the league wasn't commenting.The Dolphins declined to comment.It's common for the NFL to look into such situations involving a prominent player. The league is expected to contact the Dolphins to learn the details and make sure the injury report policy was fo llowed.Tannehill sat out Sunday's overtime win against the Chicago Bears, and replacement Brock Osweiler threw for a career-high 380 yards. Tannehill has been ruled out of Sunday's game against Detroit.Gase has said the condition in Tannehill's throwing shoulder worsened as last week progressed. Osweiler took "maybe a few reps" in Thursday's practice, Gase said, but the injury report said Tannehill participated fully in the workout.The Dolphins listed Tannehill as questionable Friday Cheap Jason Sanders Jersey , and the decision not to play him was made hours before kickoff.The Miami Herald first reported the NFL will look into the matter.AP Pro Football Writer Barry Wilner in New York contributed to this report. NFL interception co-leader Xavien Howard returned to practice Wednesday for the Miami Dolphins after missing two games because of a left knee injury.Howard said he's hopeful but uncertain whether he'll be able to play Sunday against Jacksonville."I feel great," he said. "Just trying to see at the end of the week how it's going to go."The third-year cornerback was chosen for the Pro Bowl for the first time Tuesday, to the delight of his friends and family."Man, I got so many calls and text messages it has been crazy," he said.Coach Adam Gase said he was happy for Howard T.J. McDonald Jersey , but disappointed left tackle Laremy Tunsil didn't make the Pro Bowl."I think he's the best tackle in football," Gase said.While the Dolphins got Howard back on the practice field, running back Frank Gore went on injured reserve because of a season-ending sprained foot. Defensive tackle Kendrick Norton was signed to take Gore's roster spot.Gore, hurt in Sunday's loss at Minnesota, leads the Dolphins with 722 yards rushing. He's the NFL's fourth all-time leading rusher with 14 Cheap Ryan Tannehill Jersey ,478 yards.The 35-year-old has played in 126 consecutive games and made 122 starts in a row, and both streaks are the longest by an NFL offensive skill player.