CHICAGO — Guillermo Heredia’s hopes of making his big league debut this week seemed to have dimmed when he suffered a minor shoulder injury. The versatile Cuban outfielder was supposed to join the Mariners earlier in the week for the two-game series in Pittsburgh as an additional position player for National League games, but a jammed shoulder seemed to thwart that possibility.
But after sitting out three games and getting healthy enough to play last night for the Rainiers, the Mariners decided to bring Heredia up for the weekend series at Wrigley Field. To make room for him on the active roster, left-handed pitcher David Rollins was optioned to Class AAA Tacoma.