The Friday 5: Payton Pritchard's maturation gives Celtics boost into Round 2

On the West Linn guard's resurgence, Dillon Brooks' five-year progress, the Portland Winterhawks' playoff run, Ashton Eaton's graphs and a note about Kayvon Thibodeaux and New York.

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PORTLAND — Payton Pritchard’s numbers were down in his second NBA regular seas…