When asked before the match to compare this year’s team to last, Redondo Union girls’ volleyball coach Tommy Chaffins said “We’re grittier.” That grit was evident in key moments of Tuesday night’s 25-20, 25-19, 25-17 sweep of Mater Dei before a boisterous crowd in the Sea Hawks’ gym as they ended the Monarchs’ 28-match winning streak dating back to early …