J.K. Dobbins, who sat out mandatory minicamp this week, has expressed his frustration over his contract situation with the Baltimore Ravens.

Dobbins, who is in the final year of his rookie deal, was at the team facility during minicamp but wasn't on the field for any of the three practices.

"The business side is very hard. It's very different," Dobbins told WJZ-TV. "You saw with Lamar [Jackson] ... It's never just roses and daisies. It can be hard at times and it's business though."

Dobbins, 24, is scheduled to make $1.391 million this season, which is 24th among all running backs.