ST. LOUIS -- The St. Louis Cardinals acquired right-hander Riley O'Brien from the Seattle Mariners for cash and claimed utilityman Jared Young off waivers from the Chicago Cubs on Monday to fill out their 40-man roster.
O'Brien, whose grandfather Johnny played for the Cardinals for part of the 1958 season, was an All-Star for Triple-A Tacoma last season, going 2-5 with a 2.29 ERA. He made three starts but primarily worked out of the bullpen, where he was 15-for-19 in save opportunities.
O'Brien was assigned to Triple-A Memphis, but the 28-year-old will compete for a job on the Cardinals staff in spring training. Their pitching staff was a big reason for the 71-91 finish, putting together a combined 4.79 ERA, which ranked 24th overall.
Young appeared in 16 games for the Cubs last season. He hit .186 with two homers and eight RBIs.