NFL

Kaepernick believes he can "get faster and more efficient with his stride." He was certainly fast enough last year, averaging 6.6 yards per regular-season rush and ripping off a 25/264/3 line in three playoff games. With a full offseason under his belt as the starter and Anquan Boldin in the mix, Kaep is primed to go off. A top-three fantasy finish among quarterbacks should surprise no one.

Gray was a quarterback and wide receiver in college. Now the 6-foot-3, 240-pounder is being asked to do some in-line blocking, run routes and carry the ball a little. "It's very hard," he said, "but you've just got to stay in the playbook and overcome adversity. ... Blocking and terminology being up front with the big guys ' that's the biggest part of being a tight end." Gray could use a year on the practice squad.

The 49ers are still listing Daniels as a quarterback, but he's well aware his passing "ability" isn't going to earn him a roster spot. "Whatever's asked of me to do, that's what I'm going to do," Daniels said. Unsigned rookie QB Collin Klein would be wise to adopt that credo. Proving he can do more than hold a clipboard at the NFL level could give Daniels a leg up on Scott Tolzien for No. 3 duties.

Route running was supposed to be Patton's bread and butter, but he showed poorly on patterns at 49ers rookie camp. He tends to get a bit anxious and will tip his routes. It's a flaw that can be coached up, so it's not a long-term concern. Patton should compete for No. 3 receiver duties as a rookie.

"The ACL looks really good for Marcus," insisted Harbaugh. "We're just going to have to take a step back in terms of the cutting because we want that inside of the knee, the lateral side of the knee to heal fully. But we're good." Lattimore conceded he'd be "fine" with sitting out the entire 2013 season. Harbaugh said the 49ers will determine his playing status at a later date.

Somewhat undersized at 6-foot-1 and 236 pounds, Moody will compete for a roster spot behind Navorro Bowman and Patrick Willis. Moody played SAM 'backer at Florida State, but he'll move inside and run down kickoffs in San Francisco.

A former tight end, Bykowski stands in at 6-foot-6, 306 pounds with 33 3/4-inch arms. He has the measurables, but has little shot of cracking the 49ers' loaded 53-man roster. Bykowski's most likely home is the practice squad.