Marcus Mariota has taken another important step - literally - as his recovery from a broken leg progresses on schedule.

Tennessee Titans coach Mike Mularkey said the quarterback is now wearing a walking boot after using a scooter to move around. The boot represents another sign that Mariota's recovery from the broken right fibula he suffered against Jacksonville during Week 16 of the 2016 NFL season remains on track.

"We know what is going on with Marcus and his rehab daily," Mularkey told reporters at the NFL Scouting Combine Wednesday. "We do a good job of staying in touch with their training staff and are made aware of everything that is logged. ... We know what is going on. He is in a boot, walking around in a boot."

Mariota has been in Eugene and the University of Oregon for some of his rehab, but Mularkey said Mariota currently is home with family.

Mariota's injury cut short what was a breakout season in 2016. He completed 276-of-451 passes for 3,426 yards, 26 touchdowns, nine interceptions and a 95.6 passer rating in 2016. The quarterback also ran for 349 yards and two touchdowns.

Mularkey said Mariota's availability for any off-season work is uncertain, but he expects Mariota to be ready for training camp. However, the goal is make sure Mariota is 100 percent healthy for the regular season and the Titans aren't going to rush him back.

"Our No.1 goal is to make sure he is under center when we open up opening day," Mularkey said. "I am not going to put a timeframe on when that first practice or when that first (OTA) will be. I can't do that because every player is different in how they recover, and it's difficult to do."

-- Geoffrey C. Arnold | @geoffreycarnold