SEATTLE — One of these years — theoretically — Sue Bird is going to decide her body can no longer withstand the rigors of a WNBA season. Or it may be that she will grow weary of having to summon the mental strength through the grind that has made her among the most cerebral players the sport has seen. Thankfully, this is not that year. The news, delivered through a medium, Instagram, that didn’t even exist when Bird was drafted by the Storm in 2002, brightened another dreary winter’s day: Bird will be back. She’ll be back, at age 41, for her 19th season with the Storm over a span of 21 years (…
