Mallory Hasselbeck of Rivers named No. 1 high school senior

Rivers School senior midfielder Mallory Hasselbeck, right, will join her sister at Boston College next year. (Courtesy)

There will only be one Hasselbeck sister playing for Rivers School next spring and, according to one source, she’s number one.

Inside Lacrosse anointed Mallory Hasselbeck its top-ranked high school senior player on Thursday in a social media post that also ranked the top 10 college freshmen in women’s lacrosse.

Hasselbeck, a midfielder, is committed to play next year at Boston College, where she'll join older sister Annabelle, a freshman this year.