There were no real fights between the Ravens and the San Francisco 49ers during a joint practice session Saturday at the Ravens' training complex.
The closest they came to a skirmish was a brief shoving match between Ravens outside linebacker Pernell McPhee and 49ers fullback Will Tukuafu.
And that didn't seem to surprise the father of Ravens coach John Harbaugh and 49ers coach Jim Harbaugh.
"The amazing thing is these teams that get together, they normally do the two or three days before the game, and then you play the game and get on the plane and go home," said Jack Harbaugh, a retired former football coach at Western Kentucky, Western Michigan and Michigan. "The way they chose to do it was unique in my opinion. You do the game first, and then you have the things that happen in the ballgame, and something might have been said, and then you see how they practice.
"They practiced hard. They really had great intent and great practice. To do it so respectfully, I think it speaks highly for the players and the team and how they feel about each other. It was good just to see the way they played and the confidence they had, both teams. I think it's going to be a good year."
49ers defensive lineman Quinton Dial had another theory about the absence of fights.
"It's too hot out here to fight," Dial said. "It's a little warm out here. We're just working to get better. We're going to take care of each other and get good quality work."
Ravens middle linebacker Daryl Smith said it was a productive practice session.
"We came in and got some good work, both teams," Smith said. "We practiced against a different look and saw different plays. Their entire organization is like ours: classy. We just came out here and focused on getting better and focused on football."