Cincinnati Bengals quarterback AJ McCarron is one of the NFL players featured on an app designed to help young athletes train.

The former Alabama standout worked with Locked In Sports to provide training expertise for the app. He's joined by cornerback Aqib Talib and wide receiver Demaryius Thomas, a pair of three-time Pro Bowlers for the Denver Broncos, and All-Pro defensive tackle Aaron Donald of the Los Angeles Rams in the enterprise with the Oklahoma City company.

The app has two versions - Locked in for Players and Locked in for Coaches. The version for players features drills used by the NFL advisors.

Locked In Sports' press release said the app was built "with the idea to give players access to elite-level training that's customized to them" through "workouts, video instruction, player-versus-player competition and comprehensive analytics."

The player version costs $8 a month or $49 a year. The coach version costs $490 annually.

McCarron is coming off his second NFL season. The former St. Paul's standout didn't play in his rookie season because of a shoulder problem. In 2015, he took over at quarterback for the Bengals when Andy Dalton suffered a broken thumb in the 13th game of the regular season.

McCarron completed 79-of-119 passes for 854 yards and six touchdowns with two interceptions. In addition to the final three games of the regular season, McCarron started the Bengals' playoff game against Pittsburgh and threw a 25-yard touchdown pass that gave Cincinnati a 16-15 lead with 1:50 to play, but the Steelers rallied for an 18-16 victory.

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