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NASHVILLE, Tenn. –** The Titans were on the field Tuesday for their second day of organized team activities.

Here's a look at what stood out:

• Quarterback Marcus Mariota had an overall solid day. He was mostly accurate, especially on throws in traffic. He tucked the ball and ran with it on several occasions, displaying nice speed. For now, he's ditched the knee brace he wore last season. The defense didn't make it easy on him Tuesday, however. On several plays Mariota was forced to run, or the play was whistled dead after solid coverage and pressure.

• It was a busy day for receiver Michael Campanaro, who joined the team earlier this offseason after playing previously with the Ravens. I didn't count catches, but Campanaro might've hauled in the most grabs on Tuesday.

• Receiver Tajae Sharpe looked good catching the football. Sharpe missed last season with a foot injury, but he's back in good health now and it shows.

• Darius Jennings, who spent time on the team's roster and practice squad last year, made a nice catch across the middle and he also got open deep.

• Sticking with receivers, a pair of second-year guys had good days – Corey Davis and Taywan Taylor. Davis caught a bunch of balls across the middle and turned them upfield, and Taylor showed some shiftiness with the ball in his hands.

• Undrafted receiver Jordan Veesy, at 6-3, 221 pounds, sure looks the part. Veesy was upset with himself when he was unable to haul in a well-defended deep ball, however.

• Cornerback Adoree' Jackson made a nice play on the sideline in coverage, breaking up a pass intended for Taylor on the boundary. Jackson is flashy, and athletic. At one point during a break in practice, he caught a ball behind his back with ease.

• Tight end Delanie Walker didn't hesitate to dive in making several catches.

• Running backs Dion Lewis and Derrick Henry are so different from a physical standpoint, one 5-8, 195, and the other 6-3, 247. But they sure get your attention in different ways on the field. Henry busted loose on several plays, and Lewis looked elusive in space.

• Outside linebacker Derrick Morgan was in the right spot to pick up a botched exchange. In a game, he might've returned it for a touchdown.

• Secondary coach Kerry Coombs has as loud a voice as any Titans assistant coach in recent memory. He reminds me of former defensive line coach Jim Washburn with his volume level.

• Linebacker Aaron Wallace was in a perfect spot to thwart a designed run by Mariota. He was waiting for him as he turned the corner, and in great position to end the play.

• Receiver Rishard Matthews didn't take part in practice, according to Titans coach Mike Vrabel, who said he'd be worked back in "when he's ready."

• Tackle Jack Conklin, who is recovering from last year's knee injury, watched today's OTA on the field. Vrabel said Conklin should benefit from watching the reps, and hearing the calls. He doesn't expect him to take part in workouts this offseason, he said. Vrabel didn't give a timetable on when Conklin might return.