Tannehill will undergo reconstructive surgery on a partially torn anterior cruciate ligament in his left knee and miss the 2017 season, according to multiple reports.
The 29-year-old Tannehill could have elected to rest his left knee for six to eight weeks and attempt a comeback, but he elected for surgery instead. Reconstructive surgery to an ACL generally sidelines an athlete for nine to 12 months.
Dolphins coach Adam Gase said Saturday he is confident Tannehill will be ready for 2018 and will be around the team this season. Tannehill initially injured his knee against the Arizona Cardinals in December, partially tearing the ACL. It was reinjured on Aug. 3, when he fell to the ground while scrambling toward the sideline in practice.
--Dallas Cowboys star running back Ezekiel Elliott, suspended six games by the NFL for violating the league's personal conduct policy after multiple domestic violence incidents, is disappointed by the league's decision and plans to appeal.
In a personal statement posted Friday night on Twitter, Elliott said: "I am both surprised and disappointed by the NFL's decision today, and I strongly disagree with the league's findings.
"I recognize the distraction and disruption that all of this has caused my family, friends, teammates, the Dallas Cowboys organization as well as my fans -- for that I am sincerely sorry. I admit that I am far from perfect, but I plan to continue to work very hard, on and off the field, to mature and earn the great opportunity I have been given."
Elliott plans to appeal the suspension, his representatives said in a statement. Elliott has three business days to file notice of appeal, and a hearing must be scheduled within 10 days of receipt of the notice, according to Article 46 of the collective bargaining agreement, which governs appeal of commissioner discipline.
Aguayo made a 20-yard field goal on the Bucs' opening possession in Friday night's 23-12 loss to the Cincinnati Bengals in the preseason opener, but he missed an extra point in the second quarter and then in the fourth quarter his 47-yard attempt sailed wide right.
Aguayo, 23, lasted only one season with the Buccaneers after Tampa Bay traded up in the second round of the 2016 NFL Draft to select the Florida State product. In his rookie season, Aguayo made only 22 of 31 field-goal attempts and 32 of 34 extra-point attempts. His 71 percent on field goals was the lowest in the NFL.
Veteran Nick Folk, who was brought in during the offseason to compete for the kicking job, made his lone field-goal attempt from 45 yards on Friday night. The 32-year-old Folk spent the last seven seasons with the New York Jets (2010-16), converted 27 of 31 field goals (87.1 percent) in 2016, tied for sixth-best in the NFL, while making 24 of 26 extra-point attempts.
--The Washington Redskins placed linebacker Trent Murphy on the injured reserve list after he sustained a torn ACL and MCL in his left knee during Thursday night's preseason opener against the Baltimore Ravens.
Murphy is entering his fourth season with the Redskins after being the team's top pick in the 2014 NFL Draft out of Stanford. He suffered the season-ending injury in the first quarter of Washington's 23-3 loss to Baltimore at M&T Bank Stadium.
Murphy was slated to miss the first four games of the season after being suspended for violating the NFL policy on performance-enhancing substances.
The 26-year-old Murphy was coming off a career-high 9.5 sacks. In his first three seasons in Washington, Murphy appeared in 47 regular-season games with 22 starts, registering 112 tackles along with 15 sacks, six forced fumbles and four fumbles recovered.
"It's an ankle injury; we're not sure how bad," coach Vance Joseph said. "We're kind of assuming it's not that bad."
Wolfe, 27, was injured when he became tangled up with offensive tackle Menelik Watson in a team drill. Trainers helped Wolfe onto a cart and he was taken to the locker room. He also was sent for an MRI exam following practice.
Wolfe, like most starters, played very little in the Broncos' 24-17 victory at Soldier Field on Thursday night.
Wolfe recorded 51 tackles and 5.5 sacks in 14 games last season. Since being drafted in the second round in 2012, he owns 191 tackles and 22.5 sacks in 69 games (all starts).
--The Minnesota Vikings signed running back Bronson Hill after running back Bishop Sankey was waived with an injury designation.
The 5-foot-10, 215-pound Hill joins the Vikings after finishing the 2016 season with the Jacksonville Jaguars and being released on May 1. He ran twice for 11 yards in three games for the Jaguars.
Before his stint in Jacksonville, Hill spent the 2016 training camp with the Cincinnati Bengals. The Eastern Michigan product began his NFL career as an undrafted free agent and spent the 2015 training camp with the Buffalo Bills before spending time on the practice squads of the Chicago Bears, Miami Dolphins and New Orleans Saints throughout the 2015 season.
Sankey suffered a season-ending knee injury in Thursday night's 17-10 win over the Buffalo Bills in the preseason opener. Sankey, who suffered a torn right ACL, will go on injured reserve once he clears waivers.