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.

Senga, who missed almost all of last season with a shoulder injury, is 7-3 with a 1.47 ERA.

Kodai Senga is expected to be placed on the injured list with a right hamstring strain this weekend, which opens up a spot for one of the two pitchers set to return to the rotation at the end of the ...