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Diaz (shoulder) said after his rehab appearance with High-A Brooklyn on Thursday that he will get one more rehab outing Sunday before being activated from the 15-day injured list on Wednesday or Thursday, SNY reports.

Advice: Diaz allowed one hit and struck out two in a scoreless inning for Brooklyn in his first rehab appearance. The reliever was pleased with his performance, saying after the game that his fastball had "new life" and his slider felt "great." Diaz is on track to return to the Mets' bullpen next week, although it's not clear whether he will serve as the team's closer right away. Rotowire.com Today, 8:11 am

Munoz (back) played catch prior to Thursday's game in Oakland, Shannon Drayer of Seattle Sports 710 AM reports.

Advice: Drayer adds that Munoz was seen giving fist bumps to others afterward, which would seem to indicate things went well. Munoz had to be removed from an appearance Thursday versus the Athletics, but there's optimism he can avoid the injured list and could be available to pitch this weekend in Kansas City, per Daniel Kramer of MLB.com. Rotowire.com Yesterday, 11:28 am

Munoz (back) said Wednesday that he's feeling better and remains optimistic he'll avoid a stint on the injured list, MLB.com reports.

Advice: The results of the right-hander's MRI are still pending, but Munoz appears confident the flareup of a lower-back issue that caused his removal from Tuesday's appearance is temporary. Munoz revealed Wednesday he had actually been dealing with his back strain since the second game of the season and has been managing it with treatment and other pain-management remedies. Consequently, the collision with the Athletics' Max Schuemann in Tuesday's game wasn't the actual culprit, as Munoz added that he had already been feeling back tightness when warming up in the bullpen that night. Munoz's MRI results could be the ultimate determining factor in whether he avoids an IL stint, with those results likely to be available at some point Thursday. Rotowire.com Yesterday, 9:10 am

Miller allowed one run on one hit and one walk with one strikeout over 1.2 innings, earning the save in Wednesday's 2-1 win over the Mariners.

Advice: Miller was strong, aside from a 102.5 mph pitch that Julio Rodriguez took out of the yard in the ninth inning. This was Miller's first outing since his blown save versus the Rays last Thursday. The flamethrower has been tagged for eight runs (five earned) over his last 7.1 innings, but he has three saves and a blown save in that span. For the season, he's up to 12 saves in 13 chances with a 2.28 ERA, 0.90 WHIP and 52:11 K:BB across 27.2 innings. Rotowire.com Wednesday, 9:34 pm

Mason Miller allowed a run over 1 2/3 innings while striking out one to earn the save against the Mariners on Wednesday.

Advice: Miller was asked to preserve the A’s two-run lead in the eighth inning with two runners on and one out. He induced a fly out and a groundout to keep the Mariners scoreless. Miller returned for the ninth and surrendered a solo homer to Julio Rodríguez before locking down his 12th save of the season. Rotoworld Wednesday, 9:02 pm