KANSAS CITY, Mo. -- The 49ers' defense didn't wait until the post-game handshakes Friday night to get cozy with quarterback Alex Smith, who spent his first eight seasons with the 49ers.
Smith played the entire first half for his new team, the Kansas City Chiefs, and had a rough time against his former teammates in the 49ers' 15-13 victory in an exhibition game at Arrowhead Stadium.
Smith completed seven of 16 pass attempts for 62 yards and was plagued by several drops from his receivers. He was sacked three times and was hit a couple other times -- including a helmet-to-helmet hit from reserve defensive tackle Tony Jerod-Eddie that drew a roughing-the-passer penalty.
"Not very efficient in the passing game," Smith said. "I left a lot out there. I think I didn't handle the pressure as well, and just some finer details here and there."
The 49ers picked up their first two sacks without taking Smith to the ground. Cornerback Perrish Cox grabbed up Smith around the ankles, and rookie outside linebacker Corey Lemonier wrapped up Smith. Referee Walt Anderson whistled the plays dead before Smith was tackled.
But the 49ers got in plenty of shots, too. Cornerback Nnamdi Asomugha knocked down Smith on a corner blitz. And rookie safety Eric Reid hit Smith as he was throwing on a third-down play deep in 49ers territory.
"You just see a quarterback," said 49ers outside linebacker Parys Haralson, who recorded one of the 49ers' seven sacks in the game. "It's just a game. You're out there playing, and everybody wants to compete and win."
But 49ers coach Jim Harbaugh did not just see any other old quarterback on the other side. He compared it to competing against his brother, Baltimore Ravens coach John Harbaugh.
"Alex is a one-of-a-kind guy," Harbaugh said. "Just being around him and watching him compete was very exciting to watch. I remember the first time I played against my former team, it was a great thrill of competition and I'm sure he felt that tonight.
"It was different and somewhat personal -- in the best kind of way. I wish him great success and health and we'll be following him. I thought he looked sharp, looked in control and had good command on his throws. It was an impressive night for him."
Smith played just one series against the 49ers' starting defense, but the Chiefs' offense managed just six first downs and two field goals in seven possessions during the entire first half.
"You want to move the ball and get some points on the board, so yeah, a little frustrating," Smith said. "It's tough to judge. Seems like very time we got a couple of first downs, we sputtered out and we couldn't execute on the third down."
After the game, the erstwhile 49ers starting quarterback was a popular man on the field. He shook hands and exchanged hugs with many of his former teammates.
"It was different -- definitely different," Smith said. "I mean, those are guys that I played a long time with and got to know really well, some of them. (It was) weird facing them."
The 49ers have plenty of reason to continue to root for Smith. If the Chiefs finish this season with an 8-8 record or better, the 49ers will get a second-round pick to complete the trade that sent Smith to the Chiefs in the offseason. If the Chiefs are below .500, the 49ers will receive a third-round selection.