Setback for injured Diamondbacks OF Adam Eaton

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The Arizona Diamondbacks say outfielder Adam Eaton's injured left elbow has an irritation but no structural damage.

Still, it's a setback for Eaton, who has been on the disabled list all season. The Diamondbacks say he will spend two to three weeks doing strengthening exercises, then begin a throwing program.

Eaton was within days of his scheduled return to the Diamondbacks when he felt discomfort in the elbow during a rehab start Monday for Triple-A Reno. He returned for an examination Tuesday.

The rookie had been slated to start in center field and bat leadoff this season.

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