Toronto Blue Jays first baseman David Cooper won't be at spring training this year due to a serious back injury, the club announced Sunday.

Meanwhile, right-handed pitcher Tyson Brummett has been added to the big league camp as a non-roster invitee, rather than reporting to the Jays' minor league camp.

Cooper is seeing specialists, hoping for help with a disc issue.

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"It's going to be longer than we were hoping," said manager John Gibbons. "So that's bad news."

Cooper split last season between Toronto and triple-A Las Vegas. He hit .300 with four homers and 11 RBIs in 140 at-bats in 45 games with the Jays in 2012.

Brummett was claimed off waivers from the Phillies in October.

He went 26-47 with a 4.52 earned-run average over six minor league seasons in the Philadelphia system, with 83 starts and 194 appearances.