The Celtics bet on players with untapped upside with many of their offseason moves this summer and saw some encouraging returns out of their gate in their preseason opener Wednesday night. One of the promising highlights in Boston’s 121-103 win over the Grizzlies came from reserve forward Josh Minott. Boston signed the 23-year-old to a two-year deal back in July after he spent the first three years of his career largely buried on the bench in Minnesota. Opportunity in Boston helped Minott land with the Celtics in free agency and he started to show the promise of a potentially increased role on Wednesday night.

Minott stuffed the box score with eight points, seven rebounds, three rebounds, three steals and a block in a team-high 26 minutes off the bench in the 18-point win. He struggled fr

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