However, it's hard not to call Kodai Senga an ace, given that his 1.47 ERA is the best in all of baseball right now. But in that case, it initially seemed like the Mets might be without their ace for some time after Senga suffered a hamstring strain while covering first base in the sixth inning of the Mets' June 12 game against the Washington Nationals.

NEW YORK — Mets manager Carlos Mendoza announced after Friday’s 7-5 loss to the Rays that right-hander Kodai Senga has been diagnosed with a Grade 1 strain in his right hamstring.

Paul Blackburn will get the initial call to replace Kodai Senga in the Mets' starting rotation. On Friday, he was tagged by the Rays in relief.