Thoughts on Day 2 of 49ers' minicamp

SANTA CLARA, Calif. -- It's only the second day of tight end Vernon Davis' and tackle Alex Boone's holdout, yet San Francisco 49ers coach Jim Harbaugh appeared to be tiring of talking about the subject.

"To answer the three, four, five follow-up questions, it gets to be badgering," Harbaugh said. "It gets old. I covered it thoroughly yesterday. I don't feel like there is anything more to say about it at this time."

Here are some other observations from Day 2 of minicamp:

  • Rookies, running back Carlos Hyde and receiver Bruce Ellington, continued to shine in practice Wednesday. The two youngsters look good. If they have a good training camp, both should be in line for solid roles in the season.

  • Harbaugh said veteran defensive end Justin Smith is dealing with an unspecified injury. He should be ready for the start of training camp.

  • The coach also noted the 49ers are working on dealing with eight-man defensive fronts. The 49ers often faced stacked fronts last year because they ran so much. "Yeah, that's a reality and we have to have ways to make defenses pay for that," Harbaugh said. "Excited where our offense is evolving to and continuing to improve so that we can do that, have shown the ability to do that and continue to strive to get better at that."

  • Undrafted rookie safety James McCray from Catawba has been impressive. Defensive coordinator Vic Fangio noted he has a long way to go, but he likes McCray's potential. I'd say he is a candidate for the practice squad as of now.

  • As he did earlier in the offseason, star inside linebacker Patrick Willis is playing the Mike position. It was manned by NaVorro Bowman -- but Bowman will be out for about half the season as he recovers from a torn ACL. Willis has played the Mike before but he has been manning the Jack inside linebackers spot.