Jarred Kelenic is going to be called up Thursday by Seattle to make his debut at home against Cleveland.

The clock will begin at that point in the most powerful way on just how destructive the Mets’ trade of Kelenic was. So far, so bad. Since the Mets dealt Kelenic to the Mariners in December 2018:

1. He has become a top-10 prospect in the sport. If still a Met, he would have provided security if Michael Conforto left via free agency after this season or would be one of the most valuable trade chips in the sport — certainly much more valuable than when the Mets took on Edwin Diaz and Robinson Cano.

2. Justin Dunn, the Mets’ first pick in 2016, has become a useful starter (3.51 ERA in five starts), albeit one that still walks too many batters.