49ers rookie Eric Reid a hit in training camp so far, trying to win starting free safety job

Hitting and tackling is not allowed during team drills for the San Francisco 49ers, so Eric Reid practices proper technique by driving his body through a makeshift punching bag with the other defensive backs.

Apparently, Reid still needs to hit the bag some more.

San Francisco's first-round pick made six tackles in an impressive preseason debut against the Denver Broncos last Thursday night, including a pair of highlight-reel hits. Whether Reid will be ready to start at free safety against Aaron Rodgers and the Green Bay Packers in the regular-season opener Sept. 8 is still unclear.

For all the potent potential Reid has displayed, he's still a rookie. And the 49ers are trying to ease his transition to the NFL before making him the last line of defense.