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Birds land Nate Robertson

The Cardinals have signed former Marlins and Tigers pitcher Nate Robertson.

The hurler, recently released by Florida, had a 6-8 record with a 5.47 ERA. In his 101 1/3 innings pitched he gave up 110 hits -- 11 of them home runs. Robertson struck out 61 and walked 40 while with the fishes.

Robertson's best season came in 2006 when we was 13-13 with a 3.84 to help the Tigers to the World Series against the Cardinals. Since then he is 6-9 with a 5.51 ERA.

I guess Robertson will be an insurance policy. But I can't imagine what the Cardinals plan to do with him now that they have filled one roster hole with Jake Westbrook and plan to soon have Kyle Lohse back to fill the other. The Birds also have Jeff Suppan and Blake Hawksworth -- who filled the void after Lohse and Brad Penny went down with injuries -- still in the fold. And GM John Mozeliak said over the weekend that Penny, who longtossed Sunday, is still expected to be back before season's end.

Maybe Robertson, a lefty, is being considered for bullpen duty. He'll start out in Class AAA Memphis.