Terry Rozier’s shotmaking, a strong start on the glass and other leftover thoughts from Celtics-Sixers

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Leftover thoughts and observations after a second viewing of the C’s season-opening win over the Sixers at the TD Garden.

1. The C’s (and especially Marcus Morris) did some great work on the defensive glass: The big worry over the last couple seasons when the Celtics went small was an inability to keep bigger frontlines off the glass. The Sixers have a ton of length up front in Joel Embiid, Ben Simmons and Dario Saric, and they had plenty of opportunities to grab offensive boards after hitting just 39 percent of their shots on the night. The Celtics were elite in this department though, limiting Philly to just five second-chance points and six offensive rebounds on the night. Marcus Morris led the way on this front with his team-high 10 rebounds. He came to Boston a couple years ago with plenty of questions about his low defensive rebounding rate, but he posted a career-best last year in that department, and last night he grabbed a sensational 53 percent of all available defensive rebounds when he was on the floor (his career average is 15 percent). Terry Rozier (eight rebounds) was his usual elite self on the glass as well, while Jayson Tatum (nine boards) chipped in plenty with his length on the wing. With the Celtics committed to going small more than ever this year, rebounding is a going to be a team effort on a nightly basis. Tuesday night was a strong step in the right direction.