ARLINGTON -- The Red Sox on Friday re-acquired shortstop Alex Gonzalez, who may be their solution at the position for the remainder of the season.

"We get a guy who can catch the ball," manager Terry Francona said. "He's going to help us a lot. He makes plays that make you shake your head. I think [our having him earlier] helps. If a guy can play, you build a relationship with them in a hurry."

Gonzalez was the Red Sox's starting shortstop in 2006. He hit .255 with nine home runs and 50 RBIs in 111 games, missing time due to an oblique strain.

"I think he was a little frustrated when he left," Francona said.

Gonzalez was hitting .210 with three home runs and 26 RBIs in 68 games this season for the Reds. He is expected to join the Red Sox in Arlington on Saturday.

Gonzalez, 32, has made only six errors in 266 total chances. His .977 fielding percentage ranked him eighth among National League shortstops.

The Red Sox sent Minor League infielder Kris Negron, their seventh-round pick in the 2006 First-Year Player Draft, to the Reds. Boston also received money in the deal.

Negron was hitting .264 with three home runs and 34 RBIs in 111 games with Class A Salem this season. He ranked third in the Red Sox's farm system with 31 stolen bases last season and had 20 this year.

Gonzalez was on the disabled list from June 20-July 23 after having surgery to remove bone chips from his right elbow. He missed all of the 2008 season after having surgery on his left knee.

When he left the Red Sox after the 2006 season, Gonzalez signed a three-year, $14 million deal with the Reds. He has a $6 million club option for 2010 or a $500,000 buyout.

Gonzalez posted a club-record .985 fielding percentage in his first stint with the Red Sox in 2006.

"Alex Gonzalez is a great shortstop," shortstop Jed Lowrie said. "He's got great hands, and he can help at any point."

Nick Green, who has filled in at shortstop throughout the season, wasn't disappointed with the move, saying he was willing to do whatever was needed of him.