The Tigers have traded Dontrelle Willis and cash to the Diamondbacks for Billy Buckner.

Arizona will only pay Willis the minimum salary of a prorated $400,000, with the Tigers paying the remainder.

The Tigers acquired Willis, a two-time All-Star and a former 20-game winner, as part of the 2007 deal that included Miguel Cabrera.

Willis is 1-2 with 33 strikeouts, 29 walks a 4.99 ERA in nine starts. He won three games in three seasons in Detroit, appearing in 24 games.

Buckner, who was 0-3 with an 11.08 ERA in three starts this season.

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