ESPN reported an MRI exam revealed that Tannehill did not suffer a tear in the knee, but the extent of the damage and how long Tannehill will be sidelined remain unclear.
Tannehill was scrambling toward the sideline and went down without contact. Trainers were examining his brace-covered left knee before taking the 29-year-old inside for further evaluation.
Tannehill sustained a sprained ACL and MCL in the same knee last season, but did not require surgery. He missed the Dolphins' last three regular-season games and their playoff loss to the Pittsburgh Steelers.
Head coach Ron Rivera said a change in the offensive scheme means Newton will run less this season, but that was before the Panthers ran into Newton's nagging right shoulder issue that prevented him from throwing passes Thursday and three straight training camp workouts.
Newton fled the practice field on a utility cart, first speeding away from media in reverse across the football field before shifting into drive and fleeing toward the locker rooms. Joe Webb was a stowaway in the bed of the cart.
--The Philadelphia Eagles added depth to their secondary by signing free agent defensive back Corey Graham to a one-year contract, the team announced.
The 32-year-old Graham spent the majority of his career at cornerback before shuffling to safety for the last two seasons in Buffalo.
Philadelphia likely will use Graham as a cornerback with the team aiming to upgrade from Jalen Mills, Patrick Robinson, rookie Rasul Douglas and Ron Brooks.
Richardson told the New York Daily News that he was asked to take a pay cut to make a trade work.
Richardson is slated to make $8.1 million this year and can be a free agent at the end of the season. He recorded 62 tackles and 1.5 sacks in 15 games last season.
Davis' soft-tissue injury comes on the heels of him missing the first two days of training camp while finalizing his contract. Davis, who was the fifth overall pick of the 2017 draft, received a four-year contract worth an estimated $25.4 million, with a $16.6 million signing bonus, according to The Tennessean.
The Patriots showed their appreciation for Brady on his 40th birthday by bringing five baby goats to training camp. The adorable creatures were each fitted with a No. 12 jersey.
The team also set up a mammoth "GOAT" sign in his honor.
--The San Francisco 49ers waived wide receiver Bruce Ellington, the team announced.
Ellington did not play last season after being placed on the injured reserve list with an ailing hamstring in August.
The 25-year-old reeled in 19 receptions for 215 yards and two touchdowns in his two previous seasons with the 49ers.
McDowell, who was a second-round selection of the 2017 draft, reportedly sustained a concussion and facial injuries in an ATV accident a couple weeks ago.
A larger-than-life statue of Benson also was unveiled.
Benson gifted $10 million toward the construction of the 23,000-seat stadium in 2014. He also made a $1 million contribution toward the creation of Legends Landing, an assisted living facility which will be part of the Player Care Center at Johnson Controls Hall of Fame Village.
--The Jacksonville Jaguars announced that long snapper Carson Tinker will miss the entire season after sustaining a torn ACL in a non-contact drill on Wednesday.
Tinker, an undrafted free agent out of Alabama, has been the Jaguars' long snapper the past four seasons. He signed a four-year contract extension prior to the 2015 season.