Concussions

The Miami Dolphins placed former Crimson Tide quarterback Tua Tagovailoa on injured reserve after the quarterback was diagnosed with his third concussion in two years. The star player will be sidelined for at least four games.

Former Alabama star quarterback Tua Tagovailoa is now dealing with the third diagnosed concussion of his NFL career, all of them coming in the last 24 months. And there are now questions about his future — both short-term and long-term. The Miami Dolphins quarterback was hurt in his team's 31-10 loss to the Buffalo Bills on Thursday night, sustaining the injury on a play where he collided into Bills defensive back Damar Hamlin. Tagovailoa, who was rushing successfully for a first down, initiated the contact by lowering his shoulder into Hamlin instead of sliding as many quarterbacks do on a scramble.

NFL Charities is awarding more than $1.5 million in grants for sports-related medical research at 15 organizations, with nearly two-thirds of the money…