National Football League roundup

[May 25, 2016]  May 24 (The Sports Xchange) - The NFL officially awarded future Super Bowls to Atlanta, Miami and Los Angeles on Tuesday.

Atlanta was selected to play host to Super Bowl LIII in 2019, Miami to Super Bowl LIV in 2020 and Los Angeles to Super Bowl LV in 2021.

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Former All-Pro defensive end Charles "Bubba" Smith is the latest former NFL player to be diagnosed with chronic traumatic encephalopathy.

The Concussion Legacy Foundation web site reported the results, which were released Tuesday with the permission from Smith's estate. Smith is the 90th former NFL player found to have CTE by researchers at the Boston University brain bank.

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Expanded instant replay was approved at the NFL Owners meetings with a focus on preventing administrative issues.

The changes are not the extensive overhaul of instant replay proposed by the Baltimore Ravens but the expansion of communication to correct mistakes related to the game clock, down and distance and penalty yardage represent new additions to what the NFL defines as reviewable. The adopted proposal was made by the league's competition committee.

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The Tennessee Titans lost offensive lineman Byron Bell for the season on the first day of Organized Team Activities with a serious ankle injury.

"I know it's dislocated," Titans coach Mike Mularkey said. "I don't know all the medical terms. He'll be out for this season."

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Cincinnati Bengals tight end Tyler Eifert will undergo surgery on his ailing left ankle, according to the Cincinnati Enquirer.

Eifert, 25, suffered the injury nearly four months ago in the Pro Bowl and it hasn't healed.

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With a black bandage on his left thumb Mark Sanchez took reps with the first-team offense in his initial full-team workout with the Denver Broncos.

Sanchez returned one week ahead of schedule to participate in the workout as part of the defending champion Broncos' organized team activities schedule.

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The Cleveland Browns signed wide receiver David Richards.

Richards played at Arizona where he compiled 110 receptions and 11 touchdowns.

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The Miami Dolphins signed two more 2016 NFL draft picks, adding third-round receiver Leonte Carroo and seventh-round tight end Thomas Duarte. (Editing by Frank Pingue)

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