Kade Anderson makes MLB debut

SEATTLE — The leash was longer than maybe expected, and Kade Anderson nearly wiggled through it during the tensest moments of his MLB debut on Saturday afternoon.

The Mariners’ wunderkind left-hander had just been backed by a headsy double play while clinging to a one-run lead in the sixth inning, one out away from the first quality start in what will likely be a career of many.

But on his…