As a rookie last season, Hertl scored six goals in his first three games, including four against the New York Rangers. He had 15 goals and 25 points in his first 32 games before damaging two ligaments in his right knee on Dec. 19 during a collision with Los Angeles Kings forward Dustin Brown that kept him out until late in the season.
This season, Hertl has eight goals and 17 points through 47 games entering the Sharks' game Wednesday against the Kings at SAP Center (10:30 p.m. ET; NBCSN).
"Everybody thought it would be a harder season for me," Hertl said. "For some guys it's hard. For some guys it's OK. For me I think it's hard. Maybe before the season, maybe it was in my head that this season I needed to play good because of last season. Maybe it was just in my head. Maybe I put a little bit of pressure on myself."