Mets designate RHP Ryota Igarashi for assignment.

Sandy Alderson and company don't have to make excuses for the previous regime, so they ultimately felt like the $1.75 million left on his contract worth wasn't worth wasting a spot on the 40-man roster. The Japanese right-hander was a major disappointment in his first season stateside, posting a 7.12 ERA and 25/18 K/BB ratio over 30 1/3 innings.

Mets recalled RHP Ryota Igarashi from Triple-A Buffalo.

Sean Green was expected to replace K-Rod on the roster, but Igarashi gets the call instead. The Japanese right-hander has been a massive disappointment with the Mets this season, posting a 7.91 ERA in 22 appearances, but he should stick with the big club the rest of the way.

Mets optioned RHP Ryota Igarashi to Triple-A Buffalo.

Igarashi was just called up from the minors on Thursday to take the roster spot of Francisco Rodriguez. Since Johan Santana and R.A. Dickey pitched complete games, he didn't have a chance to make an appearance. He'll return to a 3.52 ERA over 15 1/3 innings with Triple-A Buffalo.

Mets recalled RHP Ryota Igarashi from Triple-A Buffalo.

He'll take the place of Francisco Rodriguez on the 25-man roster, at least for the next couple days. Igarashi has been a major disappointment with the Mets this season, posting a 7.91 ERA in 22 relief appearances. The Japanese right-hander posted a 3.52 ERA and 15/5 K/BB ratio over 15 1/3 innings with the Bisons, so hopefully he has turned things around.

The Mets promoted Ryota Igarashi from Single-A St. Lucie to Triple-A Buffalo.

Igarashi made three scoreless relief appearances during his brief time with St. Lucie. Hopefully some more regular work in the minors will do the Japanese right-hander some good, because he can't be trusted on the big league level right now.

Mets optioned RHP Ryota Igarashi to Single-A St. Lucie.

With his ERA sitting at 7.91 in 19 1/3 innings, Igarashi had fallen out of favor in the Mets pen. He'll probably spend 10 days at St. Lucie before the Mets decide whether to bring him back to the majors or to get him some work in Triple-A. It didn't make sense to send him to Triple-A Buffalo now since they have their All-Star break coming up as well.

Mets activated RHP Ryota Igarashi from the 15-day disabled list.

There had been talk that Igarashi's return would give the Mets a chance to send down Jenrry Mejia to Triple-A and groom him to be a starter, but that's not the case as Manny Acosta is the unlucky winner of a trip to Buffalo. Igarashi missed nearly a month with his hamstring injury, but the Mets are certainly glad to have him back as their overworked bullpen is tied for the league lead in innings pitched at 159 IP.

Ryota Igarashi (hamstring) rejoined the Mets on Saturday and will be activated from the disabled list Sunday afternoon.

The 30-year-old right-hander has been sidelined since April 21 with a left hamstring strain. He threw a scoreless inning Friday for Triple-A Buffalo and will return to a 1.35 ERA. Jenrry Mejia or Manny Acosta will probably be demoted to clear room on the 25-man roster.

Ryota Igarashi (hamstring) tossed a scoreless inning for Triple-A Buffalo on Friday night.

He struck out one while not allowing a hit. It is expected to be his final minor league rehab appearance. Igarashi had a 1.35 ERA over his first seven major league appearances before hitting the disabled list with a left hamstring strain on April 21.

Ryota Igarashi (hamstring) will pitch for Triple-A Buffalo on Friday.

There was some thought that Igarashi will be activated for the start of this weekend's series against the Yankees, but the Mets will give him at least another day.

Ryota Igarashi, out since late April with a hamstring strain, could be activated from the disabled list as soon as Friday.

Igarashi will make his final rehab appearance Thursday for Triple-A Buffalo and return to Citi Field for the start of the Mets' weekend series with the Yankees. He had a 1.35 ERA in six-plus innings before the injury.

Ryota Igarashi (hamstring) tossed two scoreless innings for Single-A Port Lucie on Monday.

He's now expected to join Triple-A Buffalo for a few more appearances before joining up with the big club next week. The Japanese right-hander had a 1.35 ERA over his first seven appearances before going on the disabled list with a left hamstring strain on April 21.

Ryota Igarashi (hamstring) allowed four hits and two runs in 2/3 innings Saturday in a rehab appearance for Single-A Port Lucie.

He fired 11 of his 17 pitches for strikes, and basically cruised through the appearance without showing much effort. It was a low-A game. The Mets are expected to have him throw three or four more rehab outings before rejoining the big league club. Look for Igarashi in a week.

Ryota Igarashi (hamstring) will head to Class-A Port St. Lucie Saturday or Sunday to begin his rehab.

Igarashi will get a day off after his first appearance, but should pitch in back-to-back games later in the week, according to the New York Daily News. Once that happens, he'll head to Triple-A Buffalo before rejoining the Mets' bullpen.

Ryota Igarashi (hamstring) threw a bullpen session on Thursday.

The Mets haven't set a date for a minor league rehab assignment, but it should happen very soon. The Japanese right-hander posted a 1.35 ERA over his first seven appearances in the big leagues before going on the disabled list with a left hamstring strain on April 21. He'll be welcomed back to an already-overworked bullpen.

Ryota Igarashi (hamstring) is "getting close" to a rehab assignment, according to Mets assistant GM John Ricco.

Igarashi threw off a mound Monday without any pain or discomfort in his hamstring. He had a 1.35 ERA in seven games before being placed on the disabled list April 21 and will be welcome back warmly to the Mets' bullpen.

Ryota Igarashi (hamstring) threw off a mound Monday without discomfort.

Igarashi should be just about ready to rejoin the Mets' bullpen. He was placed on the disabled list back on April 21 with a left hamstring strain and is eligible to return at any point this week. The 30-year-old had a 1.35 ERA in seven relief appearances before injuring his left hammy.

Mets placed RHP Ryota Igarashi on the 15-day disabled list with a left hamstring strain.

Igarashi suffered the injury while attempting to field a bunt during the eighth inning on Tuesday. It's not yet known how long he'll be sidelined. The Japanese right-hander was off to a fine start stateside, posting a 1.35 ERA and 3/4 K/BB ratio over his first 6 2/3 innings.

Ryota Igarashi exited Tuesday's game against the Cubs with an apparent hamstring injury.

Igarashi appeared to slip on the grass while attempting to field a bunt by Koyie Hill. He was relieved by Fernando Nieve.