SANTA CLARA -- Tight end Zach Ertz was the headliner at the 49ers' local pro day on Wednesday.
The former Stanford star did not originally plan to work out in front of 49ers coaches or scouts. But he jumped onto the field to take part in the on-field evaluation.
"At the end of the day, I just wanted to compete," Ertz said.
The 49ers own picks at Nos. 31 and 34, and Ertz remains a possible selection at either of those spots. He was the highest projected draft pick to take part among the 57 players invited to the local pro day.
"I'd love to come to play for the Niners," said Ertz, who caught 69 passes for 898 yards and six touchdowns as a senior at Stanford.
"After losing Delanie (Walker), I know there's an opening."
[RELATED: 2013 NFL Draft central]
Garrett Celek, who went undrafted last year, is the only other tight end on the roster behind starter Vernon Davis.
Ertz, of course, played at Stanford under 49ers coach Jim Harbaugh and offensive coordinator Greg Roman. Former 49ers tight end Brent Jones has worked with Ertz since he was a junior at Monte Vista High in Danville. Ertz said he considers Jones a mentor and role model.
* * *
Cal quarterback Zach Maynard participated in the local pro day. Every draft-eligible player from Cal, Stanford and San Jose State, as well as out-of-the-area college players from the Bay Area, were eligible to participate.
Maynard grew up with his half-brother, Cal wide receiver Keenan Allen, who is considered a borderline first-round draft pick. Allen did not take part in the 49ers pro day. Maynard said Allen remains in good spirits as he spent the final allowable day traveling to meet with NFL teams. News surfaced this week that Allen had suspiciously high levels of water in his drug test at the NFL scouting combine in Indianapolis in February.
"He's not down at all," Maynard said. "I guess he was over-hydrated. I guess that's what they said about it. . . It could've been a slight mishap in the test. Won't know until there's a re-test."
* * *
Nate Montana, son of 49ers Hall of Fame quarterback Joe Montana, came to the team's practice facility for the first time that he can remember, he said. Montana had not been a starting quarterback in high school or college until he played this past season at West Virginia Wesleyan, an NCAA Division II school.
He is not expected to be drafted and is just hoping to get an invite to an NFL training camp. Montana said he has also not ruled out playing in the Canadian or Arena leagues.
Nate said his father has been nothing but supportive but has also warned him of the cut-throat nature of the NFL business. When asked what his father said to him prior to the workout, Nate said, "Good luck, and go out and have fun."
Montana, who wore No. 13 during his workout, said being the son of a famous athlete can be a blessing and a curse.
"The expectations might be unrealistic, but it also might open some doors, so you can't complain about," he said.
* * *
LOCAL PRO DAY
The 49ers on April 17 will hold a pro day at the team's Santa Clara practice facility in which draft-eligible players from Cal, Stanford and San Jose State may attend. Also, athletes from the Bay Area who played college ball out of the area are eligible to participate. These visits do not count against the 49ers' 30-player pre-draft maximum. Here are the players who attended:
Zach Maynard (Cal), Nate Montana (West Virginia Wesleyan-Concord), Tarik Hakmi (Louisiana Tech-San Jose)
C.J. Anderson (Cal), Joshua Brown (San Jose State), De'Leon Eskridge (San Jose State), Mike Manuel (Cal), Isi Sofele (Cal)
Kameron Krebs (Cal), Eric Stevens (Oregon-San Jose)
Rashad Evans (Fresno State-Hayward), Aaron Horne (Iowa State-Oakland), Chuck Jacobs (Utah State-Richmond), Jamal-Rashad Patterson (Stanford), Rashad Ross (Arizona State-Vallejo), Mike Scott (Idaho-Palo Alto), Drew Terrell (Stanford), Greg Wilson (Fordham-Danville)
Zach Ertz (Stanford), Keenan Brown (San Jose State), Ryan Otten (San Jose State), Peter Tuitupou (San Jose State), Levine Toilolo (Stanford)
Jeremy Galten (USC-San Mateo), David Quessenberry (San Jose State), Sam Schwartzstein (Stanford), Jeremy Sanders (Duquesne-Oakland), Matt Summers-Gavin (Cal)
Kendrick Payne (Cal), Aaron Tipoti (Cal), David Tuitupou (San Jose State)
Kiko Alonso (Oregon-Los Gatos), Chase Thomas (Stanford), Michael Clay (Oregon-San Jose), Alex Debniak (Stanford), Lawrence Hughes (San Diego-Oakland), Kennith Jackson (Cal Poly-Santa Clara), Travis Johnson (San Jose State), Robert Mullins (Cal), Tristan Okpalaugo (Fresno State-Livermore), Kevin Reed (Southern Illinois-Walnut Creek), Albert Rosette (Nevada-Antioch), Sua Tuala (USC-San Mateo)
Bernard Harold (Stanford), Allen Chapman (Kansas State), Tyre Ellison (Cal), Josh Hill (Cal), Drew McAllister (USC-Danville), Cullen Newsome (San Jose State), James Orth (San Jose State), Joseph Sampson (BYU-Oakland), Ronnie Yell (San Jose State), Joey York (San Diego-Pleasant Hill)
Aaron Goodwin (Arkansas-Pine Bluff- San Jose), Jackson Rice (Oregon-Moraga), Andrew Shapiro (Fresno State-Walnut Creek), Daniel Zychlinski (Stanford)