Dolphins right tackle Austin Johnson is no stranger to injuries and he's dealing with another one at Dolphins training camp.

The Miami Dolphins endured a rough few days on the practice field as they ramp up for their preseason opener next week.

The Miami Dolphins added offensive lineman Germain Ifedi on Sunday, adding depth to a line that saw starting right tackle Austin Jackson injured on Friday. Ifedi was one of five offensive linemen to tryout for the Dolphins on Saturday. Ifedi joined the team on the practice field on Sunday, wearing number 62.