MLB Player News

The Rockies optioned Shook to Triple-A Albuquerque on Saturday.

Shook will lose his place in Colorado's bullpen after giving up four earned runs in two innings during Thursday's loss to the Giants. He owns a 2.89 ERA and 1.19 WHIP through 37.1 Triple-A frames in the hitter-friendly Pacific Coast League, so he could make it back into the Rockies' bullpen down the line if he returns to form at Albuquerque. Jeff Criswell was recalled in a corresponding move.

The Tigers claimed Granillo off waivers from the Nationals on Saturday and optioned him to Triple-A Toledo.

The 26-year-old was pushed off Washington's 40-man roster last Saturday to make room for Matt Krook, but Granillo will reclaim a 40-man spot in the Tigers organization. He's turned in an ugly 8.02 ERA and 1.66 WHIP through 33.2 innings at Triple-A this season, so he will likely have to turn things around at Toledo before getting a chance in the Tigers' bullpen.

Atlanta optioned Karinchak to Triple-A Gwinnett on Saturday.

Karinchak made one appearance after being promoted to Atlanta on Tuesday, logging a walk and a strikeout in a scoreless inning Thursday against Pittsburgh. He'll now head down to make room in the bullpen for Owen Murphy, who was recalled from Gwinnett in a corresponding move.

Atlanta recalled Murphy from Triple-A Gwinnett on Saturday.

Murphy was sent down to the minors earlier in the week after conceding two runs (one earned) in one inning against the Mets during his MLB debut Tuesday. The 22-year-old prospect will now get another chance to showcase his talents with the big club, replacing James Karinchak in Atlanta's bullpen.

The Red Sox recalled Rivera from Triple-A Worcester on Saturday.

After turning in a 3.08 ERA and 1.21 WHIP across 38 innings in Triple-A, Rivera will be making his first career start in the majors Saturday, per Ian Browne of MLB.com. It's worth noting that Rivera threw just 29 pitches during his last Triple-A outing and will be working on three days' rest, so he isn't likely to pitch very deep into Saturday's contest. Brett Harris was sent down to Worcester in a corresponding move.

The Twins claimed Anderson off waivers from the Red Sox on Saturday and optioned him to Triple-A St. Paul.

Boston designated Anderson for assignment Monday, but he'll end up back on a new organization's 40-man roster after being picked up by Minnesota. The 26-year-old righty has given up three runs in eight major-league innings this season but owns a 4.81 ERA and 1.38 WHIP over 58 frames in the minors.

Diaz (elbow) will begin a rehab assignment at Single-A Ontario on Saturday, Katie Woo of The Athletic reports.

Diaz began facing hitters in live batting practice last weekend and is now ready for the final step in his rehab from the elbow surgery he underwent in April. It's unclear exactly how many minor-league reps the Dodgers want the 32-year-old closer to get before he rejoins the team, but he seems to be on track to return to the big-league bullpen shortly after the All-Star break.

Yates gave up one hit in a scoreless ninth inning to earn the save in Friday's 4-3 win over the Twins.

Yates has continued to show improvement on the mound recently, allowing just two runs (one earned) while striking out 15 batters across his last 10.2 innings. He's now recorded two of his team's last three saves.

The Twins optioned Orze to Triple-A St. Paul on Saturday, Aaron Gleeman of AaronGleeman.com reports.

Orze will end up as the odd man out of Minnesota's bullpen to make room for Tommy Nance, who was acquired in a trade with Toronto on Friday. Orze has turned in a 5.66 ERA and 1.52 WHIP across 41.1 innings with the Twins, and he'll likely need to show signs of improvement in the minors before getting another invitation to the big club.

Poulin will serve as the opening pitcher in Saturday's game against the Yankees, Mark Zuckerman of NatsJournal.com reports.

Poulin will receive his 11th opening assignment of the season and will likely remain in the game for an inning or two before turning the game over to bulk reliever Miles Mikolas. Poulin has given up just two runs in 10.1 innings since coming up from the minors in mid-June and carries a 2.83 ERA through 35 frames on the year.