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Snell (groin) will throw a bullpen session Tuesday and make another rehab start for Triple-A Sacramento on Friday, Shayna Rubin of the San Francisco Chronicle reports.

Advice: Snell showed signs of rust during his first rehab appearance with Sacramento on Sunday, and as expected, he'll make at least one more start in the minors before the club considers activating him from the 15-day injured list. The southpaw fired 51 pitches Sunday and will continue to build toward a full workload in his upcoming appearance as he makes his way back from a left groin strain. Rotowire.com Yesterday, 4:10 pm

Major League Baseball suspended Diaz for 10 games Monday for violating prohibitions on foreign substances, Jon Heyman of the New York Post reports.

Advice: Diaz was ejected from Sunday's 5-2 win over the Cubs after failing the "sticky substance" test from the crew chief upon entering the game in the bottom of the ninth inning. The suspension will go into effect beginning with Tuesday's game against the Yankees, and assuming he elects not to appeal the ban, the 30-year-old closer won't be eligible to pitch until July 6 against the Pirates. Adam Ottavino and Reed Garrett will be the likely candidates to step in for save opportunities during Diaz's absence. Rotowire.com Yesterday, 3:27 pm

Scherzer (1-0) picked up the win Sunday, allowing one hit and no walks with four strikeouts across five scoreless innings against Kansas City.

Advice: Scherzer showed no signs of rust after missing the first 12 weeks of the season recovering from offseason back surgery and battling thumb and forearm injuries, retiring the first 13 batters he faced and picking up the victory. Though he completed five innings, Scherzer was pulled after 57 pitches and should continue to have his workload monitored during his next few starts. Still, the three-time Cy Young winner looked like himself Sunday and is on track to face the Orioles at Camden Yards next weekend. Rotowire.com Sunday, 10:36 pm

Diaz was ejected from Sunday's game against the Cubs for the use of an illegal substance following an inspection from the crew chief, Pat Ragazzo of SI.com reports.

Advice: Diaz failed the "sticky substance" check upon entering the game in the bottom of the ninth inning with the Mets up 5-2. If MLB concurs with the crew chief's assessment, Diaz will receive an automatic 10-game suspension, so the Mets may be without their closer for some time. Expect a decision on a suspension to be announced before the Mets' next game Tuesday versus the Yankees. Reed Garrett and Adam Ottavino would likely be first in line for saves should Diaz receive a 10-game ban and choose not to appeal. Rotowire.com Sunday, 7:13 pm

Snell (groin) made a rehab start Sunday with Triple-A Sacramento, allowing two runs on three hits and three walks while failing to strike out a batter across 1.2 innings.

Advice: Snell wasn't particularly effective in the first start of his rehab assignment, throwing just 27 of his 51 pitches for strikes in a 5-4 win over Round Rock. Following the contest, the left-hander said he anticipates needing at least one more rehab appearance, if not more, stating that he wants to be "healthy and 100 percent" before he returns from the 15-day injured list, according to Shayna Rubin of the San Francisco Chronicle. Snell had been limited to just six starts in his first season with the Giants before landing on the 15-day injured list June 3 with a left groin strain. Rotowire.com Sunday, 4:15 pm