According to the Royals Twitter feed, the Red Sox have acquired infielder Mike Aviles from the Kansas City Royals in exchange for utility player Yamaico Navarro and minor league pitcher Kendal Volz.

Aviles, who finished fourth in the 2008 AL Rookie of the Year award voting, has struggled this season producing a .293 wOBA and 0.0 wins above the replacement level in 202 plate appearances.  Still, he owns a much more respectable .322 wOBA in more than 1200 PAs, and is versatile enough with the glove to play second, third, and short.  With Jed Lowrie due to start his rehab assignment on Monday, it’s not clear what role Aviles will play with the Red Sox.