Quarterback Tua Tagovailoa, in his third season in the NFL, was on pace to have a great year but suffered a nasty injury in Week 3 versus the Buffalo Bills.Three days later on Thursday Night Football, the Miami Dolphins quarterback suffered both head and neck injuries against the Cincinnati Bengals. He sustained the injuries in the second quarter following a hit by Bengals tackle Josh Tupou. Tua was on the field for quite some time before the stretcher was brought out and he was carted off. He was eventually taken to a local hospital in Cincinnati.NFL fans took to Twitter to share their thoughts and prayers for the young Dolphins quarterback.Former players like Robert Griffin III and Richard Sherman, as well as current NFL stars like New York Jets cornerback Ahmad Gardner, sent their prayers to Tagovailoa:Robert Griffin III@RGIIINever seen someone’s hand lock up like that. Praying for Tua.18026953Never seen someone’s hand lock up like that. Praying for Tua.Richard Sherman@RSherman_25Prayers up for TUA! That is heartbreaking to see.144851061Prayers up for TUA! That is heartbreaking to see.SAUCE@iamSauceGardnerPrayers up for @Tua 🏾 You got this bro2246140Prayers up for @Tua 🙏🏾 You got this broDamien Harris@DHx34Prayers for Tua 🏽2806196Prayers for Tua 🙏🏽Zeke’s Spoon@SpoonOfZekeWhoa that’s ultra scary for Tua, prayers up 15811Whoa that’s ultra scary for Tua, prayers up 🙏lo 🦉@packerslorenPrayers up for Tua, two nasty hits in a week 🏼765Prayers up for Tua, two nasty hits in a week 🙏🏼Jakeem Grant@_TheDreamIsHerePrayers up for my guy Tua! 135666Prayers up for my guy Tua! 🙏Other fans, however, are placing the blame squarely upon the Dolphins' medical staff for what happened to the 24-year-old quarterback:holly@xohollyDolphins medical staff are uploading resumes on indeed as we tweet632Dolphins medical staff are uploading resumes on indeed as we tweetChiefsAholic ™️@ChiefsAholicFootball is just a sport for our entertainment. These are young men with their entire lives ahead of them. The NFL should’ve never approved Tua to play tonight, after seeing what happened to him last week. Massive failure on every level in the organization. Prayers for Tua1524148Football is just a sport for our entertainment. These are young men with their entire lives ahead of them. The NFL should’ve never approved Tua to play tonight, after seeing what happened to him last week. Massive failure on every level in the organization. Prayers for TuaZirksee🍽@ZirkseeSad that medical professionals called this before the game, prayers for Tua. twitter.com/chrisnowinski1…Chris Nowinski, Ph.D.@ChrisNowinski1If Tua takes the field tonight, it's a massive step back for #concussion care in the NFL.If he has a 2nd concussion that destroys his season or career, everyone involved will be sued & should lose their jobs, coaches included. We all saw it, even they must know this isn't right twitter.com/nfl/status/157…50657If Tua takes the field tonight, it's a massive step back for #concussion care in the NFL.If he has a 2nd concussion that destroys his season or career, everyone involved will be sued & should lose their jobs, coaches included. We all saw it, even they must know this isn't right twitter.com/nfl/status/157…Sad that medical professionals called this before the game, prayers for Tua. twitter.com/chrisnowinski1…Should Tua Tagovailoa have been on the field against the Bengals?Buffalo Bills v Miami DolphinsThe biggest question for fans was why Tagovailoa was even on the field on Thursday given what had happened to him just a few days prior.The NFLPA is currently looking into the Dolphins' concussion protocol after what took place against Buffalo.Per Mark Maske's report for The Washington Post, NFL executive vice president Jeff Miller said the league has "every indication" Miami followed the right concussion protocols in handling the quarterback's injury, which the team and Tua later said was a back injury and not a head injury.In speaking to Maske, NFL executive vice president Jeff Miller said:"Every indication from our perspective is that it was [followed]," "I know the player, the coach and others have spoken to this. And we are engaged in that review now. So we'll come back with a formal answer to that question, something that we want to engage in."Given Tagovailoa's second head-related injury within three days, we'll see if the league's investigation clears the medical staff of the Dolphins.If you use any of the above quotes, please credit Sporting News and H/T Sportskeeda.