"As the summer unfolds, as many injuries as you see up here, you sometimes get the same down there in the Minors," general manager John Mozeliak said.
The Cardinals agreed to terms with right-hander Blaine Boyer, who made 15 appearances for the Cards in 2009. Boyer started the '11 season with the Mets, making five appearances in April before being designated for assignment. He allowed eight earned runs on 13 hits in 6 2/3 innings with New York. Boyer, 29, most recently pitched for the Pirates' Triple-A affiliate, allowing 12 earned runs in 8 innings.
"He's someone that's just looking for a place to pitch and we're looking to add depth, and if things go right for him, he could be that depth," Mozeliak said. "If it doesn't, then no harm in trying."
The club also signed left-hander Ron Mahay. Mahay, 40, made 10 appearances for the D-backs' Triple-A club this season, allowing 11 earned runs in 10 1/3 innings. The southpaw last pitched in the Majors in 2010 with the Twins, for whom he had a 3.44 ERA in 34 innings and struck out 25 against eight walks.