Dolphins coach Adam Gase says Ryan Tannehill won’t practice today (Twitter link via Aditi Kinkhabwala of NFL.com). If he gets one day of practice, that will be enough for Miami to play him on Sunday. However, Gase admits the Dolphins “may run out of time this week” (Twitter link via Mike Garafolo of NFL.com). 
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Miami’s original plan was to bring Tannehill back for Week 17 against the Patriots, but they decided to play it safe since they already had a 92% chance of making the postseason. With the ultra-tough Steelers on the docket, however, the Fins are eager to get their No. 1 QB back.
Tannehill was able to shed the cast on his injured leg some time ago, so he is at least moving in the right direction. Initially feared to be an ACL tear, Tannehill is dealing with an ACL/MCL sprain. That’s no walk in the park, but not as grim as it could be.
In his 13 games this season, Tannehill has completed a career-high 67.1% of his passes with 19 touchdowns against 12 interceptions. If Tannehill is unable to go, quarterback Matt Moore will start in his place.
Stick with Moore.
Tannehill did have the mobile “threat”, but he hardly ever runs and especially won’t be now. Honestly I think Moore is a better fit. He isn’t afraid to go deep and opens the offense up. Yes the Dolphins had an incredible win streak with Ryan but it was almost in spite of him and his mediocre play for 85% of the game
67.1% completion percentage doesnt happen when you play mediocre for 85% of the game.
hes not the best but if Matt Moore was better than him, he would have been playing for Adam Gase already. He probably knows a bit more about it id say.
Matt Moore is probably one of the best back up QBs in the league
Tony Romo would like to speak with you outside
he said one of the best
^this
Put him in and you could have another RG3 on your hands. Washington ruined him when they played him with similar injuries.