Greg Roman has praised Anquan Boldin for taking on a leadership role with the San Francisco 49ers.
The wide receiver was traded to the NFC West side from the Baltimore Ravens earlier this year.
The team's offensive coordinator told the 49ers' website: "I think we're very fortunate to have some really good leadership on offense. I think Anquan Boldin is a guy that's done nothing but impressed since day one with how he approaches his job, how he mentors his teammates.
"If you have the opportunity to watch, listen and learn from players who have that track-record of success and how they do it on a daily basis, how they approach their job, how they get prepared, how they take care of their body, how they study, how they pay attention in meetings, how they can do everything they can possibly do to know their job so that they can do their job at a very high level.
"That is the one thing that, if you're a young player and you don't take advantage of that, we need to have a talk. If I was a young player and I didn't do that. I would want somebody to just smack me in the head."
Boldin recorded 921 receiving yards and scored four touchdowns for the Ravens last season.
