SANTA CLARA -- The 49ers have drafted their third defensive player in four picks, trading up in Friday's third round to select Auburn outside linebacker Corey Lemonier.

"I'm really surprised. I'm pumped," Lemonier said in a conference call with Bay Area media. "It's a great defense and I'm humbled to be a part of it."

The 49ers moved up five spots (from 93rd overall to 88th) and also sent a seventh-round pick (216th overall) in their second trade of the day with the Green Bay Packers. The 49ers also traded up with the Packers in the second round to select Rice tight end Vance McDonald 55th overall.

Lemonier (pronounced "Lemon-nyay") said he had no pre-draft contact with the 49ers and was stunned to receive a phone call from coach Jim Harbaugh upon being drafted.

Lemonier had five sacks in his first four games last season as a junior and finished with 5½ sacks. He was a reserve on Auburn's 2010 national-championship team before producing a career-best 9½ sacks as a sophomore in 2011.

Lemonier worked out as a linebacker at his pro day and impressed with a 4.56-second time in the 40-yard dash. He cited his speed, ability to "bend the corners" and hustle as his best attributes.

"With hard work and dedication, it's not going to be a hard transition," Lemonier said. "By going against good players in the SEC, I've gotten so much better from that."

Asked if he compares himself to 49ers sack king Aldon Smith, Lemonier replied: "I don't want to say I'm similar because we're really different. He's a great player. I bring a different kind of talent to the field."


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