Monday marked the one-year anniversary of the Red Sox trading third baseman Kevin Youkilis to the White Sox. It was a trade that has not worked out very well for any of the players involved.

Youkilis spent parts of nine seasons with the Red Sox, hitting .287 with an .875 OPS. He played in 29 postseason games and was a key figure on the 2007 World Series champions.

Youkilis has fallen on hard times since, hitting .232 in 108 games for the White Sox and Yankees with a .335 on-base percentage.

The 34-year-old is on the disabled list for the second time this season with the Yankees. He underwent back surgery in California last week to repair a herniated disk and is expected to miss at least 10-12 weeks. Full story for BostonGlobe.com subscribers.

Peter Abraham can be reached at pabraham@globe.com. Follow him on Twitter @PeteAbe.

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