It’s okay to be upset Boston Celtics fans. Your team did not deliver in any conceivable way during the season opener against the Philadelphia 76ers. In the 107-93 drubbing, Boston fell behind early due to extraordinarily poor shooting (37% from the field, 27% from the 3-point line) and under-performances from key players.
It’s fine, after all it’s only game one of an 82-game marathon. The true test is to see how they can overcome such woes as the season progresses.
Keep in mind, the 2018-19 Boston Celtics started the season with an 18-point victory over (coincidentally) the Philadelphia 76ers.