NEW YORK -- When New York Mets right-hander Kodai Senga agreed to be optioned to Triple-A earlier this month to work on his mechanics, the ideal scenario was that he would rejoin the club soon after he was eligible to return on Sept. 20. But that isn't happening.

Senga told club officials on a call Friday that, despite being healthy, he is not ready to pitch at the major league level after surrendering four runs over 3⅔ innings for Triple-A Syracuse on Thursday. With the minor league season concluding Sunday, the plan instead is to have Senga face hitters in a simulated setting next Tuesday or Wednesday.

Mets manager Carlos Mendoza said the team is determining where that will take place because Senga is not allowed to be with the major league team while optioned.

Senga's first start

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