MLB Player News

Mengden will follow opener Liam Hendriks against the Orioles on Wednesday, Jane Lee of MLB.com reports.

Mengden will cover the bulk of Wednesday's innings. He's made three long-relief appearances this season, posting a 2.53 ERA, 1.22 WHIP and 6:3 K:BB across 10.2 innings. It's unclear if he'll continue to work out of the bullpen down the stretch or if he'll rejoin the rotation at some point.

Harvey (shoulder) is on the Orioles' instructional league roster, Roch Kubatko of MASN Sports reports.

Harvey hasn't pitched since early June after dislocating his shoulder. He suffered a pair of setbacks in August and seemed to be potentially shut down for the season, though now it appears that he'll throw at least a few innings in the fall.

Ortiz will make his first career start Friday against the White Sox, Roch Kubatko of MASN Sports reports.

Ortiz's first career MLB appearance went poorly Friday against the Rays, as he allowed three runs on three hits and a pair of walks while getting just two outs. In six starts for Triple-A Norfolk, he recorded a solid 3.69 ERA, though he struck out just 15.6 percent of the batters he faced.

Pearson (forearm) will pitch in the Arizona Fall League, Arden Zwelling of Sportsnet.ca reports.

Pearson has been out since early May after a line drive broke his ulna. The 2017 first-round pick will wind up having pitched just 1.2 innings of minor-league ball this season, but he'll at least get some innings in the instructional league and then the AFL.

Diaz (0-4) was tagged with the loss Tuesday, allowing one run on three hits while striking out one in an inning of work against the Padres.

Manager Scott Servais turned to Diaz in a non-save situation with the score tied at one entering the ninth inning, but Diaz allowed the game-winning run to come around on a couple of singles and a double. Even with Tuesday's slip-up, the 24-year-old has elite ratios (1.95 ERA, 0.79 WHIP) and has a commanding lead league-wide with 54 saves.

Duffey allowed one run on two hits in a no-decision against the Yankees on Tuesday, striking out one and walking zero in two innings.

As anticipated, Duffey went just a couple innings (throwing 29 pitches) in his start and handed off the ball to long reliever Kohl Stewart. This was Duffey's first start of the year and his 15th appearance overall, and he now carries a 8.57 ERA and 1.29 WHIP with a 16:2 K:BB in 21 innings this season. It's likely the 27-year-old will be returning to the bullpen.

Covey (5-13) gave up six runs (five earned) on six hits in a loss to the Royals on Tuesday, recording four strikeouts and three walks in 4.1 innings.

Covey made his first start since heading to the bullpen Aug. 19. The 27-year-old now carries a 5.64 ERA in 24 games (18 starts) and a 76:46 K:BB in 103.2 innings this season. If he remains in the rotation, Covey will take on the Indians in Cleveland in his next start.

Borucki gave up two runs on three hits and two walks while striking out five in 6.1 innings Tuesday in Boston. He did not factor in the decision.

He took a 2-0 lead into the seventh inning, but Boston scored four times in that frame en route to a 7-2 victory. Borucki has given up two runs in six-plus frames in three of his last four starts, but has just one win and has not fanned more than five in a start over that span. If the Blue Jays stick with a six-man rotation, Borucki will line up for a two-start week next week -- first in Baltimore and then at home against the Rays.

Barnes (hip) resumed throwing Tuesday, Evan Drellich of NBC Sports Boston reports.

Barnes has been battling left hip inflammation for a few days and was temporarily unable to throw. He last pitched Sept. 3. Given the relatively short length of his absence, he likely won't require a particularly long time to build back up, though a precise timeline is unclear.

Hendriks will be the opener Wednesday against the Orioles if he's not required out of the bullpen Tuesday, Jane Lee of MLB.com reports.

Hendriks has opened three games for the A's this season, his first starts since 2014. He has a 4.91 ERA in 3.2 innings in those games, compared to a 6.75 ERA in 12 innings as a conventional reliever.