Orioles pitcher Jake Arrieta could go from being the best option to start Thursday at Toronto to being optioned back to Triple-A Norfolk, MASNSports.com reports. 

The Orioles have reportedly decided to call up highly touted phenom Kevin Gausman from Double-A Bowie to start Thursday. Arrieta and T.J. McFarland were said to be the only two candidates for that start, but things changed for manager Buck Showalter, general manager Dan Duquette and the Orioles. 

The Orioles need to make room the roster and it appears Arrieta is the most likely candidate to be sent out with McFarland a Rule 5 player that needs to stay on the roster. 

Brewers closer Jim Henderson has found opportunities a bit tough to come by recently, but he remained sharp in picking up his ninth save of the season Tuesday against the Dodgers.

Henderson, who saved just his third game since the start of May, allowed one hit and one walk, but held the Dodgers scoreless in a 5-2 win. He struck out three batters on 21 pitches, to give himself nine saves in as many opportunities.

Henderson has an 0.95 ERA with 23 strikeouts in 19 innings of work.  

Indians starter Corey Kluber turned in a decent outing as he struck out eight but suffered his third loss of the season Tuesday night against the Tigers.

Kluber pitched five scorless innings before serving up a solo home run to Andy Dirks and a two-run shot to Miguel Cabrera in the sixth inning. The right-hander was charged with three runs and eight hits over 6 1/3 innings of work in a 5-1 defeat.

Kluber has struck out 12 and allowed six runs over his last 12 1/3 innings of work. He is scheduled to make his next start Sunday at Boston. He is 3-1 with a 5.40 ERA in four appearances (three starts) away from Progressive Field.

Pirates closer Jason Grilli has been lights out all season, but he showed Tuesday he is, in fact, mortal. Grilli allowed one run on two hits and a walk to the Cubs, however he still earned the save, in a 5-4 win.

Grilli struck out one batter en route to his 18th save of the season, giving him the most in the National League. The run was just the third he has allowed all season, and second in 9 2/3 innings in the month of May.

Grilli has a 1.31 ERA in 20 2/3 innings of work, with 11 hits, five walks and 32 strikeouts. 

Angels shortstop and leadoff hitter Erick Aybar left Tuesday's game against the Mariners due to right knee soreness, MLB.com reports. Aybar is day to day.

He was 2 for 3 with two doubles before leaving. Aybar drove in Alberto Callaspo with a fourth-inning double to deep center. He scored twice and is batting .258.

The 29-year-old has driven in five runs in his last three games so this is an unfortunate time to get injured.

Tigers starter Max Scherzer, who allowed five runs his last time out, bounced back with a flawless performance as he struck out seven and picked up his sixth win of the season Tuesday night against the Indians.

Scherzer surrendered a sacrifice fly in the first inning for his only damage of the night. He pitched seven scoreless innings after allowing a run in the opening frame. The right-hander permitted one run and allowed two hits over eight innings of work. He struck out seven of the last 12 batters faced in a 5-1 win.

"I definitely had the adrenaline going in that situation," Scherzer said. "You know that's your last inning and you throw the ball as hard as you can."

Scherzer has gone eight innings strong in three of his last four starts. He will make his next start Sunday at home against the Twins. He is 4-0 with a 5.85 ERA in five starts at home.

Cardinals starting pitcher Jake Westbrook did not throw off a mound as expected Tuesday, but he did participate in a long toss session on flat ground. According to MLB.com, he expects to throw off a mound Wednesday, as he continues to recover from right elbow inflammation.  

Braves starting pitcher Tim Hudson bounced back from his two worst starts of the season Tuesday, earning a no-decision in a 5-4 rain-soaked win over the Twins.

Hudson pitched through a rain delay in the third inning, and was limited to just five innings and 81 pitches as a result. He allowed just two runs on five hits in his five innings of work, while striking out five batters.

Hudson, who had allowed 11 runs in his previous 8 2/3 innings, lowered his ERA on the season to 4.98. He is winless in his last three starts, as the Braves would need 10 innings to win, 5-4.

Hudson is scheduled to make his next start Monday against the Blue Jays. 

Rockies closer Rafael Betancourt was forced out of Tuesday's contest against the Diamondbacks with tightness in his right groin.

Betancourt entered the game in the 10th and left after throwing just two pitches. Betancourt has a 1.56 ERA and 10 saves through 17 appearances. The Rockies have listed him as day to day, according to The Denver Post.

Twins third baseman Trevor Plouffe was forced out of Tuesday's game against the Braves after taking a knee to the head while sliding into second base to break up a double play in the 10th inning.

Plouffe went 1 for 4 with an RBI single in the eighth and was replaced by Eduardo Escobar. Plouffe likely will be further evaluated in the near future.