49ers’ Greenlaw acknowledges fine line, believes he’s not dirty player

SANTA CLARA — Linebacker Dre Greenlaw fully realizes the impact he has on his 49ers teammates with his aggressive playing style. On Wednesday, he said he understands the downside, too. "It's a fine line," Greenlaw said, three days after he was ejected in the third quarter of the 49ers' 42-19 victory due to a brief skirmish with a Philadelphia Eagles staff member. "I got to be better in those situations. I don't want to hurt the team, don't want to cause flags and stuff like that. Just got to be smarter and avoid it. I'm not too gone when I'm playing. I definitely understand, like, 'All right.'" Greenlaw initially was penalized for picking up Eagles wide receiver DeVonta Smith around the waist and throwing the 170-pound receiver hard to the ground. "When I was throwing him, I kind of felt myself trying to ease up because he was kind of light," Greenlaw said. "So I was just trying to get him down. That's the best way I know to try to get him down. "I tried to ease up a little bit, but was I surprised (the flag) was thrown? Probably not." It was the ninth unnecessary roughness penalty in Greenlaw's five-year career and his third flag for an illegal hit this season. Greenlaw was...